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) 4th quarter travel times show that the City met the service level
commitments for all peaks with a LOS C or better. All peaks showed some travel time increases
when compared to the 3rd quarter.
- 13 seconds Travel Time increase for AM Peak
- 20 seconds travel time increase for Noon Peak
- 34 seconds travel time increase for the PM Peak
The 3rd quarter showed the lowest average daily volumes seen during the COVID-19 pandemic.
Since the start of the 4th quarter in July, the volumes on SH 6 have been steadily increasing.
Using SH6/US59 as the reference point, the 7-day rolling average have increased from 92,000
vehicles per day (vpd) on July 1st to approx. 103,000 vpd on September 30th. When comparing
the end of the 4th quarter to same time last year the volumes are approx. 15,000 vpd less. With
the increase in volumes, the travel times have increased.
Average weekday travel times details on Highway 6 from Dulles Ave to First Colony Blvd/Brooks
St are outlined below:
- AM: 5 minutes 41 seconds (37.2 mph, LOS B)
- Noon: 7 minutes 4 seconds (30 mph, LOS C)
- PM: 7 minutes 10 seconds (29.5 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.