Heatmap: Spatiotemporal Traffic Speed Graphics using Connected Vehicle Data

<p>This dataset provides 286,065 connected vehicle trajectory data waypoints for a day on Thursday, May 11, 2023, over 15 miles section of interstate on I-69 northbound in Indiana. The trajectory data provides information for more than 0.2 million individual waypoints about timestamp and location. Temporal frequency of waypoints is 3 to 5 seconds.</p>

<p>The videos explain and illustrate the use of connected vehicle trajectory data for building spatiotemporal traffic speed graphics along a highway (aka heatmaps). Such a graphic provides an opportunity to agencies for monitoring traffic conditions on freeways.</p>

<p>The dataset consists of the following attributes:</p>

<ol>
<li>id: unique identifier for each of the record</li>
<li>journeyid: identifier for journey between ignition start and end</li>
<li>timestamp: timestamp in UTC</li>
<li>speed: speed in mph</li>
<li>latitude: geographic coordinate that measures a point’s north-south position</li>
<li>longitude: geographic coordinate that measures a point’s east-west position</li>
</ol>

<p>The dataset can be used for traffic performance evaluation using granular trajectory-based speed information. Methodologies can be developed using such a sample dataset.  </p>
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<p><iframe allow="accelerometer; autoplay;" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/Tk9ePm12gDk?si=GfiasIkczzi_nLoT" title="Heatmap using 91 Connected Vehicles" width="560"></iframe></p>

<p><iframe allow="accelerometer; autoplay;" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/uPVavd8Zc4M?si=znT1xLMMgEPbogLi" title="Heatmap using 5 Sample Connected Vehicles" width="560"></iframe></p>

<p><iframe allow="accelerometer; autoplay;" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/qe4AINDhiCY?si=NyVjC5gDariF0N_c" title="Heatmap using 1 Sample Connected Vehicle" width="560"></iframe></p>

<p><iframe allow="accelerometer; autoplay;" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/oICOl_l1j5A?si=lcfocKn_EOBxTn1k" title="Heatmap using Shockwave from the Incident" width="560"></iframe></p>