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COVID-19 Traffic Volume Trends

Thank you to several of our members for providing pre/post COVID traffic count/volume data to populate the geographic repository included below.  If you have additional data you would like to share or suggestions for improving this site, please email Lisa Fontana Tierney at lfontana@ite.org with a subject header "COVID-19 Traffic Volume Trends."

Calgary, Alberta, Canada

Dates of Counts: March 2 – May 31, 2020
Volume Trend (approximate): Weekday segment volumes reduced 54%.
Link: City of Calgary COVID-19 Travel TrendsMobility Trends in May 2020
Description: A multi-modal review of travel trends in Calgary due to COVID-19.  Transit ridership, taxi/ridesharing trips, and passenger car volumes have decreased.  Heavy Truck volume has remained consistent with pre-pandemic conditions.  Pedestrians and Bikes continue to use the pathway system for recreation.Additional link added to show data through May 31, 2020 for City of Calgary.  To provide some context, some business in Calgary started re-opening the second week of May, and restaurants and hair saloon were able to open up May 25.  We are now seeing increases for all modes of travel and slight increases in congestion / decreases in speed during the rush hours.

Los Angeles/Ventura Counties, CA

Dates of Counts: December 1, 2019 – March 31, 2020
Volume Trend (approximate): Total VMT reduced by 30 to 40%
Link: VMT Count Summary
Description: These are the daily VMT trends for last 4 months courtesy of Caltrans PeMS.
In the last two weeks of March, since "shelter in place" orders were issued March 16, 2020, there has been about a 30% decrease in weekday VMT on freeways in the San Francisco Bay Area and Los Angeles County. Weekend VMT on urban freeways has dropped about 40%. After the initial large drop in the first 48 hours after the orders took effect, there has been continuing, but moderate decreases in VMT. Delays in both the Bay Area and Los Angeles have dropped roughly 80%.

San Francisco Bay Area, CA

Dates of Counts: December 1, 2019 – March 31, 2020
Volume Trend (approximate): Total VMT reduced by 30 to 40%
Link: VMT Count Summary 
Description: These are the daily VMT trends for last 4 months courtesy of Caltrans PeMS. In the last two weeks of March, since "shelter in place" orders were issued March 16, 2020, there has been about a 30% decrease in weekday VMT on freeways in the San Francisco Bay Area and Los Angeles County. Weekend VMT on urban freeways has dropped about 40%. After the initial large drop in the first 48 hours after the orders took effect, there has been continuing, but moderate decreases in VMT. Delays in both the Bay Area and Los Angeles have dropped roughly 80%.

Fort Collins, CO

Dates of Counts: March 1 – April 7, 2020
Volume Trend (approximate): Volume reductions from 45% to 55%
Link: Volume Count Summary
Description: In Fort Collins, aggregated counts from system detectors located around the City are presented relative to when the various State orders were put in place. Travel reductions of 45% - 55% are being demonstrated under "stay at home" orders. Context was also provided for the type of traffic volumes relative to other typical days. Christmas Day traffic represents a 66% reduction in travel compared to a typical weekday here.

Loveland, CO

Dates of Counts: March 10 – April 5, 2019 and March 10 – April 5, 2020
Volume Trend (approximate): Percentages not noted.
Link: Count Summary
Description: Compared 2019 vs. 2020 volumes in three locations. Volumes have stabilized and it doesn't appear that volumes have started to tick back up. All of the patterns appear to be holding, just at a lower level than before.

Florida State

Dates of Counts: March 10 – April 7, 2020
Volume Trend (approximate): State traffic volumes reduced 30 to 50%
Link: https://www.fdot.gov/statistics/trafficdata/default.shtm
Description: Florida Department of Transportation has developed a dashboard on traffic volume (and truck) variations related to the COVID-19 restrictions and also provided a summary report.

Cape Corel, FL

Dates of Counts: Feb 2 – April 4, 2019 and Feb 2, 2020 – April 4 2020
Volume Trend (approximate): Total volume reductions up to 60%
Link: Count Summary 
Description: Compared day-to-day volumes from last year to this year at a few count stations.

Manatee County, FL

Date of Counts: February 10 to April 16, 2020 (compared to same time period in 2019)
Volume Trend (approximate): 30% to 40% reduction in volume compared to 2019
Link: File 1 and File 2
Description: The first file provides a comparison of the regular weekday traffic from 2019 to 2020. The second compares weekly change in traffic before and after the declaration of local curfew (during the curfew hours).

Lake County, IL

Dates of Counts: February 25 – April 8, 2020
Volume Trend (approximate): Total volumes are down 37% - 48%
Link: Traffic volumes Feb 25-27, 2020 & March 3-5, 2020 (Pre-COVID-19); March 18-19, 2020 & March 24-25, 2020 & March 31-April 1, 2020; April 7-8, 2020April 14-15, 2020 & April 21-22
Description: See executive summary on each count summary for a week by week description. Each description also has a statement on how the week is trending.

Iowa State

Dates of Counts: March 13 – April 14, 2020
Volume Trend (approximate): State traffic volumes reduced approximately 40%
Link: https://iowadot.gov/maps/Data/AUTOMATIC-TRAFFIC-RECORDER-REPORTS
Description: This report contains traffic data collected from over 120 Continuous Count Sites in Iowa State that report how traffic trends have changed since Friday March 13, 2020.  The data is being collected daily and compared to the same time period in 2019.  They also show traffic truck/freight traffic demonstrating a slight increase, but trending back to normal.

Overland Park, KS

Dates of Counts: March 1 – April 19, 2020
Volume Trend (approximate): Local Road Volume reductions up to 65%
Link: Volume Count Summary
Description: Traffic volume has remained steady between March 25th and April 19th at approximately 50-60% below normal.

Amherst, MA

Dates of Counts: Pre-Covid, 4/15/17; Covid, 3/24/20, 4:30-5:30 PM weekday turning movements
Volume Trend (approximate): Volumes 38.4% of Pre-COVID-19 volumes
Link:  Volume Count Summary
Description: Governor issued an order to close non-essential businesses the prior day, 3/23/20. The intersection is proximate to two grocery stores (which were open) and is a major access route to UMASS Amherst (which had sent students home).

Oregon State

Dates of Counts: March 5 – April 7, 2020
Volume Trend (approximate): Not provided.
Link: Moving Average Volumes
Description: 7-day moving average of detector actuations, averaged over 170 traffic signals across Oregon.

Portland, OR

Dates of Counts: December 30, 2019 – March 5, 2020
Volume Trend (approximate): Volume reductions up to 50%
Link: Volume Count Summary
Description: Portland's data is from system detectors at this point and we're using this opportunity to invest more time in the Automated Traffic Signal Performance Measures (ATSPM) system for the City. Portland has finally seen a leveling off of weekday data, so perhaps all of the Stay Home messages have done all they can and we're down to just "essential" traffic.

State College, PA

Dates of Counts: February 10 – April 9, 2020
Volume Trend (approximate): Collector traffic volume reduced approximately 60%
Link: Traffic Volumes on Select Collector
Description: Analysis of 60 days of traffic volumes on an urban collector in State College, PA.

Chattanooga, TN

Dates of Counts: February 18 – April 2, 2020
Volume Trend (approximate): Intersection volume reductions from 10% to 45%
Link: Average 24-Hour Intersection Volume per Week
Description: The City of Chattanooga's Department of Transportation has been tracking the weekly data at 12 specific locations in the city. The first 8 represent downtown core and the remaining 4 are a representation of other key locations in town.

Salt Lake City, UT

Dates of Counts: Feb 18 – March 5, 2020
Volume Trend (approximate): Intersection volumes reduced by up to 50% to 75% of normal
Link: Intersection Count Summary
Description: Graph includes data from Tues-Thurs using raw data from ATSPMs. On the right side of the graph in the spreadsheet, there is a track of a timeline of events (e.g. when the governor signed an emergency declaration; when schools shut down; earthquake; county stay home order, etc). Over the last few weeks, intersection volumes are about 50% to 75% of normal. Here is s a link intersection data https://docs.google.com/spreadsheets/d/1JSDm902zNYIJG446dscO43noi3UDQai0oAu0WUFmMI/edit?usp=sharing and freeway data: https://docs.google.com/spreadsheets/d/1qPfHnEu9ZQPOIf5BE1IR2wp9wFZd8SsvbXm-i2dyww/edit#gid=971711753

Madison, WI

Dates of Counts: February 2 – April 7, 2020
Volume Trend (approximate): Arterial volume reductions more than 50%
Link: Traffic Volumes on Selected Arterials
Description: Data goes back to the first week in February, when Wisconsin reported its first confirmed case and charted Wednesday daily counts every week since then.