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Traffic Diagnostics for StreetLight InSight®

By February 21, 2018 September 2nd, 2020 No Comments

“Big Data” is becoming buzzier and buzzier, but the adage “data is just a cost until you use it” is an increasingly common refrain. As the CEO of a transportation analytics company, I’m a true believer in the power of data. It frankly makes me sad to see so many groups investing in the idea of Big Data only to feel disappointed when they can’t get any useful information out of it. At StreetLight Data, our top priority is to help the transportation industry “put Big Data to work”.

That’s why I’m thrilled to announce the latest feature for StreetLight InSight (that’s our on-demand platform for turning mobile device data into actionable transportation analytics.) It’s called Traffic Diagnostics, and it’s designed to help you put Big Data to work to solve traffic jams. Lots of tools (including your eyes!) can tell you where traffic jams are occurring.  Traffic Diagnostics can tell you why the jam occurs, and suggests data-driven ideas for the best long-term solutions.

Traffic Diagnostics are very different from every other feature that we’ve introduced to StreetLight InSight because – and this may surprise you – all of the analytics it provides were already available in our platform. The change is how we weave the Metrics together to tell a story, making StreetLight InSight Metrics much easier to use for congestion busting in the real world of transportation planning, modeling, and engineering.

Diagnosing Traffic Jams

There are a ton of tools out there for identifying where traffic jams are occurring. Traffic Diagnostics are different: They help transportation planners quickly diagnose the causes of traffic jams and identify the highest potential mitigation and demand management tactics. The analysis uses different types of StreetLight InSight Metrics derived from navigation-GPS data, location-based services data, and contextual data sets in combination. Under the hood, Traffic Diagnostics pulls together and organizes a suite of different StreetLight InSight analytics so that you can better understand and address traffic jams. These analytics include:

  • Origin-Destination to Preset Geography – Transportation Analysis Zones (TAZs)
  • Zone Activity Analysis
  • 2016 AADT (Beta)
  • Premium Trip Attributes
  • Premium Traveler Attributes

Previously, StreetLight InSight users could run all of these Metrics separately, then combine them using MS Excel or other analysis tools to understand specific traffic jams. However, that could get time-consuming, especially for complex congestion issues. We wanted to make the process more straight-forward and easy, particularly for non-technical users of StreetLight InSight.

webinar on laptop and mobile device

Congestion Busting Storytelling

Let’s face it: There’s only so much you can do with a .CSV file. If you really want to understand row upon row of data points, you must transform the data into graphical representations like charts, graphs, and heat maps. That’s why Traffic Diagnostics let you explore the analytics with our new interactive visualization tool. I think these visualizations are the key to slicing and dicing Big Data into actionable information.

Check out this quick 2-minute video for an example of storytelling with our new interactive visualization tool and Traffic Diagnostics: 

As you can see, Traffic Diagnostics help transportation planners use Big Data to “tell a story” about traffic jams – and that story concludes with concrete, real-world actions that can help address congestion. Thanks to our new interactive visualization tool, it is quick and easy to identify the characteristics and probable causes of traffic jams  — all without downloading a single. CSV. But don’t worry! Those .CSVs are still available to download. We hope (and anticipate) that our clients will use the interactive visualizations in our Traffic Diagnostics as a jumping-off point for deeper statistical analysis and modeling.

Congestion Problem Solving with Big Data

If you watched the video above, you saw that our Traffic Diagnostics does one key thing that’s completely brand-new for StreetLight InSightIt proposes potential solutions to a transportation challenge.  For those that skipped the video, here’s a screenshot:

Streetlight insight Explore solutions to congestion for a single road

As you can see, StreetLight InSight is presenting the mitigation and demand management tactics that the data indicate are the best solutions for a particular jam. But this is not a robot that tells you exactly what to do. Traffic Diagnostics don’t understand political context. They don’t know what areas will be more or less expensive to renovate, and they haven’t heard the unique concerns of your constituents. The idea is to help you rank the top priority places for deeper modeling and analysis.

We hope that by providing a data-driven list of potential solutions, we can make it easier for planners to rank and sort the best opportunities for travel demand management.  Instead of spending a ton of time generating a short list of project opportunities for consideration, we think planners can use our tool to identify the highest potential solutions for rigorous, deep-dive cost/benefit assessments. The goal is to drive a better return-on-investment in congestion mitigation solutions by giving planners the resources they need to comprehensively evaluate the options available. This theory was based on work we’ve done in several parts of the US, including a travel demand management project with our partners at SSTI, Michael Baker International, and the Virginia Department of Transportation.

To come up with the potential solutions, we made up our own rules about what solutions are indicated by specific travel patterns, which you can see here: https://www.streetlightdata.com/scoremethods. As you can see, we created a formula for each tactic. The percentages represent the approximate number of vehicle trips that could be converted to other modes by each tactic. In the future, we will give users the option to modify these pre-set assumptions. We know that local communities are going to have different criteria for this.

Next Steps

To sum up, our new Traffic Diagnostics lets you mix different types of contextual data sets and Big Data – location-based Services, navigation-GPS, and a blend of the two –into a single story. You can zoom in and zoom out to different types and times of day with ease. Finally, StreetLight InSight makes recommendations for different demand management solutions based on the results of these five different analyses. It helps you tell an interactive story of why congestion happens and how to solve it using real-world data.

However, even with the functionality that we’re introducing to Traffic Diagnostics and to StreetLight InSight overall, at the end of the day this is just another tool for planners. A story doesn’t solve a problem. That’s what planners do. It’s simply designed to help you get the real-world information you need to solve our transportation challenges effectively and efficiently. Traffic Diagnostics are meant to help you put the best Big Data resources to work – and it’s just the beginning of our new suite of storytelling enhancements for StreetLight InSight. As we continue building out these features, we want to hear your perspective.