Vehicle Operating Speed on Urban Arterial Roadways (TTI-01-04)

Project Description: Investigating if crowdsourced speed data could be used to estimate the unconstrained speed for a location. Data collected in San Diego in 2017 using on-road tubes. Crowdsource data purchased from a vendor. The research team collected geometric variables using aerial photographs and used the street view function to obtain the posted speed limit. Data Scope: Dataset includes speed and volume data in 15-minute bins for 9 sites along with the street characteristics for the sites. Table 1 lists the number of rows of data per site. Some of the sites have less than 1344 rows of data because those sites did not include 15-minute periods when 0 vehicles were counted.