City of Boulder Traffic Counts

The Traffic Count e-Resource provides access to vehicle traffic count data collected by the City of Boulder. 

As you click through, the Traffic Count e-resource will appear as a map of the city with a series of red, blue and green dots. Each of these dots represents a piece of traffic data. The red and blue dots are 24-hour directional traffic counts taken each year at that location.The green dots are peak hour turning movement counts of each of the different movements at an intersection during each of three peak traffic hours during the day.

City of Boulder Traffic Count e-Resource

For a more detailed explanation of how to use the Traffic Count e-Resource, review the help document.

This information is typically used for traffic engineering analyses, but you might find it useful for estimating the daily traffic on any of the four approaches to that intersection. To estimate the daily traffic at an intersection:

• click on the desired green dot (peak hour turning movements);
• find the  the “In”, “Out” and “Total” counts by clicking on the "Turning Movement Count Intersection Diagrams" link for the intersection approach you are interested in;
• sum up the “Total” counts for each of the three peak periods on that approach;
• divide that total number by 0.225, which will provide an approximate daily count for that approach.

The three peak traffic hours counted represent approximately 22.5 percent of the daily traffic in Boulder. Please note that this is an estimate and should be used only as an approximation of the daily traffic at a given intersection.

For comments or questions about the Traffic Count e-Resource, please email counts@bouldercolorado.gov.

Traffic Count e-Resource Disclaimer
The City of Boulder makes no representation or warranty as to the accuracy, timeliness, or completeness of the map products and associated data displayed on this website. Any users of these map products, map applications, or associated data, accepts same as is, with all faults, and assumes all responsibility for the use thereof, and further covenants and agrees to hold the City harmless from and against all damage, loss, or liability arising from any use of this map product and associated data, in consideration of the City's having made this information available. The City disclaims, and shall not be held liable for, any and all damage, loss, or liability, whether direct, indirect, or consequential, which arises or may arise from these map products and associated data or the use thereof by any person or entity.

© 2012 City of Boulder, Colorado (Subject to Revision)

Last Updated on Tuesday, 27 November 2012 12:27