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 results of the 2nd quarter showed that the City met all targets as summarized below. Both the AM and PM peak had one train interruption while recording travel times which resulted in minimal differences from the first quarter times. The noon peak however had a 29 second increase in travel time. This is most likely attributed to three trains that occurred within the 12 – 1 pm hour while collecting travel time data. US 90 continues to move approximately 70,000 vehicles on an average weekday. The third quarter will include changes to programming prioritization of vehicles on US 90 while the train is in the crossing. We hope these changes will help minimize effects of interruptions by trains.
Average travel times(metrics) for the 2nd Quarter are summarized below with a target of C for all peak times:
- AM: 5 minutes 13 seconds (33.7 mph, LOS B)
- Noon: 6 minutes 15 seconds (28.1 mph, LOS C)
- PM: 6 minutes 59 seconds (25.2 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 Highway 6, this means the City aims to have traffic goal 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.