Traffic - Corridor US Highway 90 Performance
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Status Indicators: Proceeding as Anticipated | Monitoring Progress | Reviewing for Improvement | Information Unavailable
Proceeding as Anticipated
Reviewing for Improvement
The US 90A fourth quarter travel times show that the City met the service level commitments for all peaks. The PM peaks showed similar travel times when compared to the third quarter, while the AM and noon peaks showed travel time improvements due to staff updates to timing plans. The AM peak also improved one service level changing from a C to B.
The average weekday traffic for US90/SH6, US90/Eldridge, and US90/Dairy Ashford stayed steady at approximately 76,250 vehicles per day (vpd) from the previous quarter. Average train activity for each of the peaks was compared to the previous quarter. The data showed a steady average of 1.8 trains/hr for the AM peak, increase from 1.9 to 2.2 trains/hr for the Noon peak, and increase from 1.4 to 1.6 trains/hr for the PM peak.
- AM: 5 minutes 9 seconds (34.2 mph, LOS B)
- Noon: 5 minutes 16 seconds (33.5 mph, LOS C)
- PM: 6 minutes 30 seconds (27.1 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.