Traffic - Corridor State Highway 6 Performance
Great Place To Live
Status Indicators: Proceeding as Anticipated | Monitoring Progress | Reviewing for Improvement | Information Unavailable
Proceeding as Anticipated
Reviewing for Improvement
The State Highway 6 (SH 6) 2nd quarter travel times show that the City met the service level commitments for all peaks. The AM and Noon peak showed minor travel time changes while the PM peak had a 67 second decrease in travel time from Brooks St to Dulles Ave.
The SH 6/US 59 interchange weekday average decreased from 122,200 to 110,600 vehicles per day (vpd). Prior to March 13, the 2nd quarter was averaging approx. 119,200 vpd with two Fridays showing volumes over 135,000 vpd. Since then, traffic has decreased to as little as 57,000 vpd due to effects of COVID-19.
Average travel times details on Highway 6 from Dulles Ave to First Colony Blvd/Brooks St are outlined below:
- AM: 6 minutes 9 seconds (34.4 mph, LOS B)
- Noon: 7 minutes 15 seconds (29.2 mph, LOS C)
- PM: 8 minutes 44 seconds (24.3 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). 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 a traffic goal of at least 23 - 30 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.