Traffic - Corridor US Highway 90 Performance
Great Place To Live
Status Indicators: Proceeding as Anticipated | Monitoring Progress | Reviewing for Improvement | Information Unavailable
Proceeding as Anticipated
Reviewing for Improvement
The US 90A 1st quarter travel times show that the City met the service level commitments for all peaks (AM, Noon, PM) with a level of service of C or better. The AM peak showed similar travel times when compared to the previous quarter, while the Noon and PM peaks showed travel time increasing by 11 sec and 40 seconds, respectively.
Traffic volumes along the US 90A corridor have remained consistently 7,000 to 9,000 trips lower when compared to previous year (2019) data. For this quarter, the average volumes were approx. 67,200 vehicles per day (vpd) when using SH6, Eldridge, and Dairy Ashford volumes. This is an increase of approx. 4,000 vpd when compared to previous quarter. Train activity increased to approx. 34 trains per weekday versus 32 trains per weekday when compared to previous quarter.
*Please note that some travel time data was not collected from 11/24/2020 to 12/3/2020 due to a communication outage.
Average travel times for Highway 90 between Dairy Ashford and Highway 6 are below:
- AM: 4 minutes 27 seconds (39.7 mph, LOS B)
- Noon: 4 minutes 49 seconds (36.6 mph, LOS B)
- PM: 5 minutes 22 seconds (32.8 mph, LOS C)
Per the 2010 Highway Capacity Manual, this metric is calculated as the average measured travel speed over the posted speed limit for the corresponding major corridor (avg. speed / posted speed limit). The calculated value is converted into a percentage and translated into a letter grade indicative of a level of service (A is the best, F is the worst). This measurement is attained for the AM peak (7-8 AM), Noon Peak (12-1 PM), and the PM peak (5-6 PM), when the major travel corridors in the City of Sugar Land typically experience high travel demands. The slower the measured speed compared to the posted speed limit, the lower the Level of Service.
Measured major travel corridors include:
State Highway 6 (Dulles to Brooks St.) - 45 MPH
US Highway 90 (Dairy Ashford Blvd. to SH 6) - 50 MPH
Standard Levels of Service are classified by the 2010 Highway Capacity Manual.
A: ≥86% B: 68%-85% C: 51%-67% D: 41%-50%
E: 31%-40% F: ≤30%
A target of C means the City aims to have traffic flowing at a minimum of 51-67% of the speed limit. For US Highway 90, this means the City aims to have a traffic goal of at least 25 - 34 MPH during the AM, noon, and PM peak travel times.
The City of Sugar Land's most vital vehicular travel corridors support commercial enterprise and quality of life. Shorter travel times help improve both commercial enterprise and quality of life.