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 3rd quarter shows that the City met the Level of Service (LOS) for all peaks except the PM peak reported as a LOS D. These results were gathered on May 5th using travel times gathered by City staff. It reflects a snapshot of a day in the quarter unlike the data reported for SH 6 which captures the average travel times for the entire quarter. The adaptive system contract awarded earlier in the year has not been implemented as the IT Department is working through some communication issues currently.
The data showed that the AM and PM peaks each had three train interruptions which most likely affected the reported results. The noon peak did not have any train interruptions and showed a travel time decrease of just over a minute from the previous quarter when three trains were reported from 12 to 1 pm. Staff will have a meeting with UPRR in July to get an updated timeline as to when UPRR will correct circuit issues so hardware is implemented to minimize train interruptions. Staff is hopeful that the technology will help save some time but it is not intended to correct issues. Staff also plans to implement Bluetooth read-matching technology to better understand the average travel time versus the snapshot of one day reported this quarter.
Average travel times(metrics) for the 3rd Quarter are summarized below:
• AM: 6 minutes 39 seconds (26.4 mph, LOS C)
• Noon: 5 minutes 10 seconds (34.1 mph, LOS B)
• PM: 8 minutes 25 seconds (20.9 mph, LOS D)
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 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.