5 Inspirational Chord Diagrams:
Data Visualization
5 Inspirational Chord Diagrams:u0026lt;br/u0026gt;Data Visualization
Data visualization is one of our favorite topics here at StreetLight Data. Since we first got started in 2011, our team has iterated on countless visualization options for our transportation analytics. Bar graphs and heat maps have long served as our trusty standbys – but these days, we’re thinking bigger. In our latest software release, we added two brand-new visualization types to StreetLight InSight®: the “heat matrix” and the “chord diagram.” You can join our upcoming training session to find out how these new visualizations work. In this blog article, I’ll share five fascinating chord diagrams to show you why they’re becoming my #1 go-to StreetLight InSight visualization. (New to StreetLight Data? StreetLight InSight is our on-demand transportation analytics platform.)
So, why get so excited about a new type of diagram? Well, chord diagrams are a particularly powerful tool for analyzing complex, interconnected data streams. Unlike travel pattern heat maps, our chord diagrams allow you to quickly comprehend the magnitude of different flows, and compare the flow of traffic between several areas at once. The thickness is more intuitive for comparing total trip volume and scale than colors on a heat map. As you’ll see in the examples that follow, chord diagrams are useful not only for transportation but for all types of data analysis.
Chord Diagram #1: Refugee Flows
Credit: Dénes Csala, http://www.csaladen.es; Source: United Nations Human Rights Commission (UNHCR)
This chord diagram visualizes the flow of refugees and internally displaced persons from 1994 to 2014. It was created by Dénes Csala, an assistant professor of engineering at Lancaster University. You can explore the data more deeply using an interactive web application he developed. (It’s actually similar to the way we set up interactivity between chord diagrams and heat maps in StreetLight InSight). Professor Csala also provides a helpful overview of the methodology behind chord diagrams in the introduction to his web application. This chord diagram is a great place to start if you’re not familiar with this visualization style.
The global and domestic flows of refugees and internally displaced persons can be overwhelming, but this chord diagram simplifies these interconnected relationships. That’s why we find the visualization so compelling. It made us think, “If we’re getting our information about the refugee crisis from newspaper headlines alone, we aren’t seeing the full picture.” By turning UNHCR data into chords that represent the volume of people moving from one country to another, Professor Csala shows us in one impactful image that the majority of the world’s refugees and internally displaced people have not left their home countries.
Chord Diagram #2: International Food Trade
Credit: CSIS China Power Project | Source: MIT Observatory of Economic Complexity
Product Trade between Origin and Destination Country by Year (HS6 REV. 1992)
This chord diagram was created by the China Power Project to illustrate how China, the world’s most populous country, feeds its 1.4 billion residents. We’re focusing on the trade in vegetables in 2014. (For a clickable, interactive version of this chord diagram, visit the China Power Project website.)
When we walk through the grocery store as consumers, we usually are not thinking about the origins of our vegetables, or where the produce on local farms will go after harvest. This diagram made us start thinking about those origin-destinationrelationships in empirical terms. The first thing we noticed is the substantial influence of the US in the international vegetable trade. Per this data set, the US is easily the largest exporter of vegetables globally. The US is also sending vegetables to every country in the diagram, with American farmers shipping more than 17.7BN USD worth of vegetables to China alone in 2014.
Americans may be known for exporting our fast food burger-eating culture, but the United States’ vegetables are clearly making an impact on the global good supply. The chord diagram also highlights how the world’s countries depend on international trading partners for their food supplies. We would love to see a version of this chord diagram that includes each country’s domestic food production data.
Chord Diagram #3: Consumer Loyalty to Cell Phone Brands
Credit: Nadieh Bremer, Visual Cinnamon. Data Source: 2014 Dutch version of the Deloitte Global Mobile Consumer Survey
This chord diagram, made by Nadieh Bremer, visualizes consumer brand loyalty to cell phone manufacturers. Nadieh is a freelance data visualizer and artist. This particular chord diagram was created using data from a Deloitte survey of Dutch consumers about their current and former cell phone brands. You can view an interactive version of Nadieh’s diagram on her Visual Cinnamon website.
Mobile device data is core to our business at StreetLight Data. Plus, our team has more than its fair share of phone-loving technophiles, so this type of data is fascinating to us. We were amazed by the brand loyalty of Samsung phone owners, and also by the large share of consumers that have converted to Samsung devices from other phones in the Android operating system. Of course, the data behind this chord diagram is from 2014, before Google launched its own Pixel smartphone in 2016. We would definitely be interested in finding out how Google’s native device has changed the brand loyalty landscape for cell phones.
Chord Diagram #4: Traffic Flows in Baton Rouge, Louisiana
Credit: Arcadis. Data Source: StreetLight InSight
This is the visualization that inspired the StreetLight Data team to incorporate chord diagrams into the StreetLight InSight platform. It was created by Luis Alvergue, an engineer for Arcadis, one of our partners. The diagram shows the origins and destinations of drivers who use the I-10 Mississippi River bridge in Baton Rouge, Louisiana. It allows us to quickly determine that most of this bridge’s users are traveling from West Baton Rouge to East Baton Rouge – an important finding if you’re interested in developing an alternate route to reduce congestion on the bridge.
To learn more about this chord diagram and the data behind it, check out our guest blog post from Luis Alvergue and his colleague Thomas Montz here: Building Louisiana’s Bridges with Big Data.
Chord Diagram #5: Origins and Destinations of Commercial Truck Trips in New York City Neighborhoods
Source: StreetLight InSight
Finally, we want to show you at least one chord diagram from StreetLight InSight that we find fascinating. This visualization shows the origins and destinations of commercial truck trips in New York City during Peak AM hours by neighborhood. The base of the destinations are blue and the origins are orange.
We’re fascinated by this diagram because it lets us see all of the different origin-destination pairs at once and compare the trip volumes. Right off the bat, we can see that commercial trucks are likely to be causing problems in Midtown and Hunters Point – that’s one of the origin zones.
Commutes Across America – Where are the Longest Trips to Work? Part 2
Commutes Across America – Where are the Longest Trips to Work? Part 2
After a long day at work, you probably want to get home as soon as possible. But, on most days, that’s easier said than done.
Today, commutes across America are longer than ever – and they’re increasing. The average American commutes 52 minutes to work each day, for a total of 4 hours and 20 minutes per week. Think of all the productive ways you could be spending that time, rather than sitting in your car or crammed in a crowded subway.
In our last blog about commutes, we explored where some of the longest commutes to work are in America. Now, let’s learn more about why areas have long commutes and how Big Data can be used by transportation planners to help mitigate this problem
Why Some Commutes Across America Are So Long
So, why are commutes to work long? There are a number of factors. First, there are large population concentrations in the suburbs. As the cost of living in city centers increases, people relocate to the suburbs, which means they often have to commute into the city for the best jobs.
Next, due to urban and suburban development, construction is a regular feature of many people’s daily commute. Doesn’t it seem like there’s always something under construction in your area? Because commutes are increasing, roads need to be reconfigured to accommodate more people. And, there’s the regular construction to upkeep roads, too.
Solo commuting plays a role, as well. Most commuters today don’t carpool, choosing the freedom that comes with driving their own car to or from work. Over 90% of trips to work happen in cars, which equates to more cars on the road and slower commutes.
How Data is Collected
Each minute, millions of mobile devices collect data points that can hold valuable insights for transportation companies or urban planners. But, this raw data collected from phones, tablets, or GPS devices can be hard to translate into actionable transportation plans. So, you need a partner like StreetLight Data to help. StreetLight Data is a technology company that transforms Big Data from mobile devices into actionable analytics for transportation infrastructure and policy planning.
Using a solution like StreetLight Data’s StreetLight InSight® platform helps because it collects and condenses all of the data resources alongside processing software in one easy-to-use tool. You save time by not going out and finding the best Big Data resources yourself from different vendors, or by trying to organize and analyze data yourself outside of a proven framework.
Once the raw data is collected, it’s processed and presented as a number of different, customizable and insightful analytics to users. These analytics includes:
- Origin-Destination Matrices
- Traffic Diagnostics
- Corridor Studies
- Trip Purpose
- Demographics
- Average Travel Times and Travel Time Distributions
- 2016 AADT (Average Annual Daily Traffic)
- Commercial Truck Studies
How Data Helps Shorten Commutes
While the data collection process may seem intricate, the results it produces can be applied to a number of different transportation modeling, forecasting, and planning activities. And these activities can help you design better project and policy solutions that reduce – or even eliminate – long commutes for citizens. These include:
- Creating and calibrating travel demand models
- Evaluating before-and-after studies to determine project impact
- Prioritizing tasks and creating cost/benefit analyses for projects
- Busting congestion
- Routing detours
- Designing, expanding, and analyzing public transit systems
- Changing toll systems and signals
- Employer incentive programs
- Acting as supporting materials for public meetings and communications
Each of these transportation projects could help improve commutes in your area and shorten the drive for millions of Americans. With the right data insights, you can pinpoint exactly where problem areas are, the factors behind those problems, and the solutions that can help address these issues.
The Road to Becoming a Transportation Rockstar
Transportation data can be used by a number of transportation professionals, both in the public and private sectors. Here’s how data ensure you and your team successfully shortens traveling commutes.
How Transportation Planning Consultants Can Improve Projects Using Big Data
The success of private transportation firms is dependent on completing projects effectively and efficiently. With transportation analytics, you have the insight needed to properly plan and execute your projects. You’ll also be able to find creative solutions that could act as a competitive advantage over other firms bidding for the same projects. Plus, data can provide insights to show the return on an investment in your projects, like how building toll roads can shorten commutes.
How Public Sector Planners Can Improve Commutes for the Community
No community is like your community. Big Data helps you find the precise solutions you need to shorten traveling commutes, like improving your public transit system and first-mile/last-mile solutions, implementing new carpooling programs, and designing active transportation infrastructure.
One concern you may have as an urban planner is that the steps you take to improve commutes might not solve the problem. In the past, without data in your corner, this was a definite possibility. Today, when you use data, however, you can mitigate that risk by being sure of the factors that impact commutes. Even better, you can easily measure project performance as you implement different solutions and adjust your strategy to optimize results.
What the Government Can Gain by Using Big Data for Commutes Across America
For the federal government, data is essential for comparing commutes nationwide. This helps the government pinpoint areas that might need more federal funding for road projects or to improve public transit systems.
Data is also beneficial when it comes to nationwide initiatives. For example, the U.S. Green Building Council was able to use Big Data for transportation to better characterize commute distances.
If you’re ready to cut down on commutes in your community, it’s time to turn to Big Data. Get the analytics you need to understand the factors behind long commutes in your area and develop effective strategies to address these challenges. With StreetLight Data on your side, you’re sure to translate Big Data analytics into performance-driven results.
Commutes Across America – Where are the Longest Trips to Work? Part 1
Commutes Across America – Where are the Longest Trips to Work? Part 1
Are you tired of the long drive to and from work? This is probably the most tiresome, frustrating part of your day. And, you’re not alone. Everyone on the roadway probably feels the same!
To better understand commutes across America, StreetLight Data has compiled information on where commutes are the longest. Explore this article to find out why it’s important to understand commute travel patterns and to discover the top five states and cities with the longest commutes.
4 Reasons Why Understanding Commutes Matters
1. Commutes Impact Happiness and Health
As you sit in your car during your commute to or from work, you probably feel frustrated and stressed. Aside from being an inconvenience, a long commute could actually impact your health and happiness, too.
First, it’s important to note that the average American professional spends about 52 minutes commuting each day, according to the U.S. Census. That’s a lot of time that could be spent in better, more productive ways. You could be with your family, or even getting more work done. Instead, you’re commuting.
Next, let’s look at the impact of commutes on your health. According to a study in the American Journal of Preventative Medicine, commutes longer than ten miles have negative impacts on cardiovascular health. “The study found that people who drove longer distances to work reported less frequent participation in moderate to vigorous physical activity and decreased CRF (cardiorespiratory fitness), and had greater BMI (body mass index), waist circumference, and blood pressure.”
Finally, your happiness is at stake, too. In another study from National Geographic fellow Dan Buettner, it was reported that “if you can cut an hour-long commute each way out of your life, it’s the [happiness] equivalent of making up an extra $40,000 a year if you’re at the $50- to $60,000 level.” While a longer commute for a certain job may add more money to your bank account, it also reduces happiness from your life.
2. Commutes Contribute to Economic Inequality
Why do people drive so far to work? Many people commute just to have a job or to have a job that pays well. Others commute from suburban areas with lower costs of living to urban areas with more business and greater job opportunities.
So, how does this perpetuate economic inequality? Commutes cost money and time. If workers are expected to travel 20+ miles every day to get to work, that might not be a sustainable lifestyle. By looking at commute data, governments can step in and take action to close the accessibility gap.
3. Commutes Have an Environmental Impact
The longer you’re in your car during a commute, the more carbon dioxide your vehicle is emitting into the air. In fact, motor vehicles emit 20 pounds of carbon dioxide per gallon of gas burned. That translates into a national average of 5.5 tons of carbon dioxide emission a year for every motorist. Those emissions have a huge impact on the environment.
While there are options to cut down on the environmental impacts of commuting, like carpooling, telecommuting, or public transit, most people – 77% of motorists – still drive alone to work. And, work-related driving is responsible for nearly 30% of miles traveled in a vehicle. To cut down on those numbers, transportation planners need a better understanding of what commutes across America look like.
4. Commutes Should be Put in Context
Finally, it’s important to understand your community’s commute in context. How does your area stack up against other states and cities? Answering this question helps two groups. First, it’s crucial information for urban planners. When urban planners understand their community’s commute in context, they’re better able to identify what changes need to be made, and where they’re doing things right. Looking at similarly sized cities can reveal alternative transportation methods that could work in your own city.
Understanding commutes to work in context can also help workers make informed decisions for the future. While everyone feels like their commute is unbearable, the number might show that it could be worse. If your commute is better than those around you, you might stay at your job longer. If your commute is longer than your average commute, you might begin searching for a new job closer to home.
Commutes Compared: States and Cities
Now that you have a better understanding of why we think researching data on traveling commutes is important, let’s look at the states and cities whose drivers commute the longest distances.
Top 5 States with the Longest Commutes
Top 5 Cities (CBSAs) with the Longest Commutes
To understand city-wide travel patterns, we looked at CBSAs, or core-based statistical areas, which are a census designation for “one or more counties anchored by an urban center of at least 10,000 people,” plus neighboring counties with socioeconomic links to the urban center due to commuting. Keep in mind that statistics related to low population areas can be heavily impacted by a small number of commuters who drive long distances.
Why this Data Matters and How to Put Big Data to Work for Your Transportation Projects
Commuter data is key to finding actionable solutions for the problem. With these insights, transportation and urban planners are equipped to make insightful decisions regarding transportation planning for the future. These data points also reveal areas that may need extra attention to make commutes to and from work shorter.
Consider incorporating Big Data analytics into your transportation and urban planning process. When you do, you’ll have better insights into the commuting habits of your community, and you can find solutions to alleviate the burden of their commutes. For more information on this topic, check out the blog next week to read part two of this series on commutes across America.
5 Urban Transportation Challenges that Big Data Analytics Can Help You Solve
5 Urban Transportation Challenges that Big Data Analytics Can Help You Solve
Transportation planners today face a ton of challenges as they work to build efficient, safe, and sustainable urban transportation systems. From rising congestion to increased demand for public transit, the travel behavior and transportation preferences of modern city dwellers are changing fast. These challenges raise complicated questions for urban transportation planners; for example, “How do we handle the rise of ride hailing apps? If we add more public transit options, will people use them? How do we minimize the impact of construction if we do expand public transit? And how do we pay for all of this?”
At the heart of each of these challenges is the need for good data. The high costs and the time required to collect and analyze travel behavior data using conventional tools can prevent transportation planners from answering their questions completely – and even from answering them efficiently and empirically. But collecting and analyzing Big Data from mobile devices (that’s the location records created by connected cars and trucks, smartphones, and wearables) can provide much-needed travel pattern information quickly and comprehensively.
Thanks to new technology, data collection tools don’t have to slow transportation professionals down anymore – in fact, these tools can be some of planners’ most valuable assets. With Massive Mobile Data sources and processing software, urban transportation planners and modelers can create more accurate models and forecasts for predicting future behavior.
These forecasts and models have always been critical for prioritizing the projects that will best serve their city’s residents, but they’re even more important now: The changes in travel behavior that communities are experiencing now are poised to accelerate moving forward. In this blog post, I’ll give a few examples of how urban transportation planners can use Big Data to help address their most pressing challenges.
1. Traffic Congestion and Lack Of Parking
50% of the world’s population lives in cities today – and according to the World Bank, urban populations are growing by nearly 2% annually on average. As noted in a recent study by the Texas Transportation Institute, urban commuters in the US today spend nearly 46 hours per year stuck in traffic. Back in 1980, they spent just 16 hours stuck in traffic. While population growth is good for cities’ economic health, this growth often strains their transportation systems. An influx of cars and drivers eventually results in congested roads that are over capacity, and all those cars have to park somewhere, too.
How Big Data Can Help:
Massive Mobile Data analytics can help transportation planners identify the cause of congestion. By looking at the true origins and ultimate destinations of empirically measured, real-world trips, planners can quickly determine if insufficient parking is the problem, or if other factors such as poorly timed signals or an increase in commercial truck deliveries are to blame. If parking is the problem, Massive Mobile Data analytics can also show planners where drivers searching for parking tend to circle the most.
2. Long Commutes
As urban roads designed decades ago fill up with cars, congestion can cause commute times to go up dramatically. Per the US Census, the average American worker spends 20% more time commuting today than they did in 1980. While attracting more people and businesses is a positive move for cities, scaling up road capacity to keep up with the additional traffic is not easy.
However, even if it were cost-effective and efficient to expand road capacity, this strategy would not ultimately solve long commutes. As noted in the policy brief from the Center for Sustainable Transportation at UC Davis, when we expand highways, they are quickly filled by more cars, which increases overall vehicle-miles-traveled (VMT). This challenge is particularly important to address because longer commutes can ultimately drive businesses and residents to relocate, and that is something no city wants.
How the Big Data Can Help:
The first steps to fixing long commutes are figuring out just how long commutes are, where they begin and end, and who’s doing them. With this information, urban planners can better assess whether those commuters have access to reasonable alternatives to driving. If other options exist but commuters are still driving, urban transportation planners can then explore incentives to encourage the use of existing transit options and/or carpooling. If there aren’t good transit options for commuters, Massive Mobile Data can help urban transportation planners identify the top origin-destination pairs during peak AM and PM commuting hours. This analytics can also reveal where the largest first-mile/last-mile transit gaps are located. With up-to-date, real-world travel pattern data, it is easier to identify the potential transit routes that will encourage today’s drivers to shift modes, right down to siting future transit stop locations.
3. Lack Of Public Transportation Options
Cities don’t just outgrow their roads – they outgrow their public transit systems, too. As business and residential centers change, public transit capacity and routes also need to adapt. Where a few routes could once handle rider demand, an influx of new residents can quickly change that. San Francisco’s overcrowded BART trains are a great example of this challenge in action.
As more residents seek out more environmentally-friendly options, the demand for buses, trains and other public transportation also rises. According to DOT’s Beyond Traffic 2045 Report, transit ridership today is at a 50-year peak, and it has increased by nearly 25% over the past twenty years. As live, work and recreational patterns shift, bus routes that were useful five or ten years ago may no longer serve the ideal locations.
How Big Data Can Help:
As noted above, Big Data from mobile devices and connected cars can help reveal public transit gaps as well as expansion opportunities. By tracking trends on current usage and projected growth, urban transportation planners can also more accurately predict when they will need to expand capacity or add new routes. By tracking last-mile trips from transit stations, or finding the places where drivers could be sharing a shuttle if only that option were available, planners can target new transit investments in the most useful places.
Most importantly, this analytics can help urban transportation planners build public support for major infrastructure projects and capital investments. Using real-world travel behavior data that is less opaque and more easily understood by everyone can strengthen planners’ arguments for investing in transit.
4. Inadequate Bike And Pedestrian Infrastructure
With more people using their daily commute to work or school as a chance to get some exercise, the need for bike and pedestrian infrastructure is growing. According to the US DOT Beyond Traffic 2045 report, the number of commuters who regularly bike to work has doubled in the last decade, and walking is now the preferred mode for 10% of all trips. Not only are bike and pedestrian lanes important to control traffic, but they also greatly increase safety for both riders and walkers. However, our urban environments weren’t necessarily designed for cyclists and pedestrians, especially in cities that “came of age” during the height of urban highway development and American car culture. Road diets are one way that planners are working to address this problem; however, these occasionally controversial projects can also increase travel times.
How the Big Data Can Help:
Big Data can help reveal the impact of bike and pedestrian infrastructure improvements on vehicle traffic. By conducting before-and-after studies of pilot projects using archival data, urban transportation planners can more accurately weigh the benefits of projects such as road diets against the costs in terms of travel time and congestion. Planners can also go one step further and identify travel patterns that characterize roads that are good candidates for bike and pedestrian infrastructure. As with other types of public transit, Massive Mobile Data analytics can also show urban transportation planners the best places to implement bike shares and to locate bike share stations.
5. Negative Environmental Impacts
Communities with high rates of congestion and external-external trips also face significant negative environmental impacts. As vehicle-miles traveled climbs, so do greenhouse gas emissions and other types of air pollution. Not only does this affect the environment, it can also impact public health.
How Big Data Can Help:
The first step to solving a problem is to measure it. Big Data can help urban transportation planners measure VMT more accurately, as well as categorize the VMT contributions of personal trips and commercial trips separately. Because these estimates are based on real-world travel behavior for individual communities, they are typically more accurate for smaller urban urban areas than the broad regional estimates provided by the Federal Highway Administration. Big Data can also help planners implement electric vehicle (EV) charging networks in ways that encourage more widespread adoption. Check out our blog post on EV charger locations to learn more.
Putting it All Together
Once transportation planners have identified the challenges they’re facing, they can bring together the right mix of policy and infrastructure tools to address these issues. By using Massive Mobile Data analytics to analyze real-world travel patterns, planners can develop more effective solutions for their communities.
Eliminating the time-intensive nature of data analysis is the key to responsive transportation planning because urban communities’ travel patterns are changing fast. Data analytics tools that can quickly reveal current traffic patterns ensure that planners are using the most accurate information. Using outdated data not only slows down the process, but it also increases the likelihood that proposed road projects won’t meet the needs of today’s users – whether they’re driving, biking, or walking.
Once transportation planners are armed with the right data, they can better forecast what their communities will need, too. By tracking transportation trends over time, they can see which roads receive the most traffic and where growth will potentially overload routes. It gives them proof of the best strategies for expanding transit to alleviate congestion, shorten commute times, and reduce the environmental impact of vehicles on the roadways. Using forecasting models that are easily understood when planning projects also helps planning agencies secure the funding they need.
3 Challenges With Transportation Data Collection and How to Solve Them
3 Challenges With Transportation Data Collection and How to Solve Them
At the heart of every transportation project lies the need for mobility data. But actually getting accurate, comprehensive data in a cost-effective, appropriate, and timely manner is not always easy. Many transportation planners must rely on costly, outdated data or use time-consuming, assumption-based models to estimate behavior. Although surveys and sensors can certainly reveal important insights, planners who rely solely on conventional data collection tools often struggle to answer important travel behavior questions empirically, accurately, and comprehensively. But transportation planners can take control and get better results by taking advantage of new, more cost-effective, and more efficient data collection and analysis tools. In this blog post, we’ll discuss three key transportation data challenges, and how to overcome them by collecting data that is current and precise, and that describes real-world travel patterns.
The Status Quo
Due to both limited data collection budgets and inadequate data collection tools, projects can fall short of meeting localities’ evolving needs because they do not fully account for current travel patterns. Conventional methods and the data they produce (i.e.: inaccurate models calibrated with old data, incomplete trip information from tools like Bluetooth sensors, and license plate photographs matched to DMV records), do not give transportation planners all of the information they need to understand, evaluate, and forecast communities’ needs. Instead, they must extrapolate and estimate from the limited data sets available. And in some cases, political priorities can overshadow the priorities that the real-world data points to.
Challenge #1: Limited Budgets for Data Collection
Working with limited budgets means that transportation planners are often competing with other agency priorities for their projects. Creating competitive proposals without the proper data foundation makes it difficult for planners to capture the funding they need to develop proactive, long-term transportation projects.
When they rely on data that policymakers and civilians do not trust or do not fully understand, planners often fail to build buy-in from political actors, and they struggle to attract champions that will push their legislative priorities forward. As a result, many transportation agencies are forced into a pattern of short-term, and often expensive, fixes, or they find themselves pursuing “pet projects” instead of the ones that will make a long-term impact. For example, they repeatedly expand highways instead of finding permanent ways to reduce travel demand. Breaking this cycle requires a solid data collection and analytics tool.
Moving to an approach that prioritizes real-world data allows transportation planners to be more strategic in their funding requests, and to build a stronger base of support from policymakers. Real-world data allows planners to more objectively evaluate the long-term value and return-on-investment for each potential project, and present persuasive cost-benefit analyses to policymakers. This makes it easier to make the case for more funding because they can prove how each project they propose will add value, and rank them for stakeholders in order of impact.
This data-driven approach also makes it easier to access more varied sources of funding from private and public local, state and national sources. With the funding of the FAST (Fixing America’s Surface Transportation) Act in December 2015, Congress provided $305 billion for transportation issues from fiscal years 2016 through 2020. Funds have been earmarked to upgrade and build rail mass transit systems in major cities and upgrade facilities and buses of local transit agencies, according to the American Road and Transportation Builders Association. The act also provides billions to build and maintain highways, railroads, airports, and waterways.
Challenge #2: Collecting The Right Information Efficiently and Cost-Effectively
Cities are full of potential data sources, from red light cameras to CCTV cameras, but finding ways to efficiently, legally and cost-effectively collect that data is difficult. Without the right data tools, many transportation planners are stuck with inadequate, infrequently updated sources like household surveys that are conducted at the state and national levels. These surveys are rarely updated, and they tend to focus on high-level trends. Using such broad and often stale data makes it nearly impossible for planners to be proactive about the needs of their specific community’s changing demographics. The data are also typically not specific enough to provide instructive insights for granular geographies, such as individual intersections. Unfortunately, conducting local surveys to obtain the data required is cost-prohibitive for many communities.
Once planners are able to collect data from more varied and up-to-date sources, they can start moving in sync with their community’s needs. According to an article on Geekwire, one way Seattle was able to better analyze and understand bus ridership was using payment cards and sensors to collect more than 20 million individual data points like location, route number and time of boarding. This is a great example of how a city can take advantage of existing data that is already being collected for a different purpose.
By using comprehensive, real-world data instead of relying on intercept or household surveys and then modeling behavior to estimate travel patterns, Seattle was able to create a data set that was truly persuasive to stakeholders. Thanks to this foundational knowledge based on observed trends, the city was able to identify the specific problems that caused the greatest mobility challenges for the largest number of people more effectively. Monitoring the data over time allowed planners to understand trends in bus ridership and move quickly to address the overcrowding issues that would have the greatest impact on user satisfaction.
Challenge #3: Understanding What the Community Truly Needs
Without frequently updated, comprehensive, and accurate data, it’s difficult for transportation planners to get a clear picture of their community and its transportation needs. Using data from the surveys that are five to 10 years old forces transportation planners to be purely reactive or worse — to guess at what the city needs, or respond to the city’s loudest constituents instead of its greatest challenges.
To put it in perspective: the first ridesharing service, Uber, was established in 2009, and the company did not launch its popular “UberX” service, which dramatically expanded its driver base and ridership, until June 2013. It is unquestionable that this service and its competitors have dramatically changed travel behavior, especially in urban areas. However, the last National Household Transportation Survey (NHTS) used data collected from April 2008 – April 2009, before these services were widely available. While an updated NHTS is currently underway, the results have not yet been published.
With many cities like Seattle booming and creating transportation issues that affect residents’ ability to get to work, school, and recreation, planners cannot let negative issues such as congestion impact their city’s economic future. However, evaluating those issues using out-of-date information prevents them from forecasting the impact of infrastructure and policy solutions.
Mobile apps have also transformed the way people access information in their personal lives, and it’s now an expectation that all data will be accessed in real-time. Taking snapshots of real-time data as simple as the number of people boarding a bus empowers transportation planners. Not only can they more effectively allocate resources and create the best routes, they can use that data to better forecast usage and long-term transportation needs. With a growing emphasis on public transportation, a city must have options to meet its residents’ needs. Promising a solution “soon” isn’t going to create the kind of user-friendly options that cities need.
For example, transportation planners are looking at ways to track traffic flow and could use that data to help identify better areas to locate office parks as well as where more capacity is needed for roads and public transportation. Instead of simply adding more lanes or public transportation routes, transportation planners can look at ways to better use their existing resources without the added expense and user impact that construction brings.
Transforming Your Transportation Data Process
By moving to a more accurate, comprehensive, and precise data collection tools, transportation planners can revolutionize the way they collect and analyze transportation data. No longer held back by outdated and inadequate data, transportation planners are now able to be responsive to their community’s evolving needs.
With more powerful forecasting that is informed by real-world data, transportation planners are able to address any potential issues before they become massive problems. With this knowledge, they can also present more realistic budget requests and get the funding they need the first time, instead of making multiple requests, and possibly being denied the full funding they’re seeking.