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 3rd quarter travel times show that the City met the service level commitments for
all peaks. All peaks showed significant travel time decreases when compared to the 2nd quarter.
- -44 seconds decrease for AM Peak; remain LOS B
- -27 seconds decrease for Noon Peak; remain LOS B
- -103 seconds for the PM Peak; LOS C to B
corridor during the COVID-19 pandemic. The average 7 day rolling average was approx. 38,000
vehicles a day (vpd) which is a little over half the volume when compared to FY19 (73,000 vpd)
at the same time. By the end of the 3rd quarter volumes increase to approx. 59,000 vpd by mid
June but fell back down to approx. 54,000 before the end of month. The drastic difference in
volumes led to significant decrease in measured travel times. Train activity has remain the same
with data showing approx. 30.3 trains a day.
Average travel times for Highway 90 between Dairy Ashford and Highway 6 are below:
- AM: 4 minutes 15 seconds (41.5 mph, LOS B)
- Noon: 4 minutes 42 seconds (37.6 mph, LOS B)
- PM: 6 minutes 16 seconds (38.76 mph, LOS B)
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.