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 4th 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. All peaks showed little to no change when compared to the previous quarter.
The average volumes were approximately 74,480 vehicles per day (vpd) when using SH6, Eldridge, and Dairy Ashford weekday volumes. This is approximately 11,000 vpd higher when compared to the same quarter last year due to the COVID-19 pandemic, but only 2,000-3,000 vpd less than two years ago. Train activity stayed steady when compared to previous quarter, showing an average of 30 trains per weekday.
Average travel times for Highway 90 between Dairy Ashford and Highway 6 are below:
- AM: 4 minutes 35 seconds (38.5 mph, LOS B)
- Noon: 5 minutes 6 seconds (34.6 mph, LOS B)
- PM: 5 minutes 44 seconds (30.7 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.