01477517

Component

https://doi.org/10.3141/2395-08

http://scholar.google.com...Leod&publication_year=2013

The Highway Capacity Manual 2010 (HCM 2010) contains a significantly revised automobile analysis and level-of-service (LOS) methodology for arterials. This study compared the arterial LOS results of the HCM 2000 and HCM 2010 methodologies for an experimental set of arterial segments and analyzed the effects of the revised methodology. In addition, existing Florida field data sets were also analyzed with arterial segments obtained from Gainesville, Tallahassee, and Tampa, all in Florida, as well as data received from the Florida Department of Transportation Districts 2 and 3. The HCM 2010 results showed that for shorter, lower-speed arterial segments [such as in central business districts (CBDs)] it was not possible to obtain LOS Ratings A or B. Therefore, many CBD arterials that had good LOS values under the HCM 2000 methodology would now have moderate to poor LOS values. Consequently, the research team tested several revisions of the HCM 2010 methodology to find an approach that would not be as punitive to arterials with shorter segment lengths and that would provide a good balance of LOS values across a range of segment lengths, posted speeds, and traffic demands. Suggested revisions to the HCM 2010 methodology that allowed this objective to be achieved consisted of the following: the use of two classes instead of one (on the basis of the posted speed); the use of the average travel speed as the service measure instead of the ratio of the average travel speed to the base free-flow speed; and the setting of the free-flow speed to equal the posted speed plus 5 mph, instead of using the free-flow speed computations in the HCM 2010 methodology.

01517906

13-2109

English

pp 66–72

2013

Transportation Research Record: Journal of the Transportation Research Board

9780309287180

Print

References (6) ; Tables (9)

Arterial highways; Automobiles; Level of service; Methodology; Streets

Florida Department of Transportation; Highway Capacity Manual 2000; Highway Capacity Manual 2010

Highways; Operations and Traffic Management; Planning and Forecasting; I73: Traffic Control

TRIS, TRB, ATRI

Feb 5 2013 12:28PM

• Assessment of Design Hours for Freeways
• Breakdown Maturity Phenomenon at Wisconsin Freeway Bottlenecks
• Complete Enough for Complete Streets? Sensitivity Testing of Multimodal Level of Service in the Highway Capacity Manual
• Development of an Oversaturated Speed–Flow Model Based on the Highway Capacity Manual
• Dynamic Modeling of VISSIM’s Critical Gap Parameter at Unsignalized Intersections
• Enhancements to the Freeway Facilities Method in the Highway Capacity Manual to Enable Reliability Analysis
• Estimation of Incident Propensity for Reliability Analysis in the Highway Capacity Manual
• Lane-Based Breakdown Identification at Diverge Sections for Breakdown Probability Modeling
• Observations and Analysis of Multistep-Approach Lane Changes at Expressway Merge Bottlenecks in Shanghai, China
• Operational Effectiveness of Passing Zones Depending on Length and Traffic Volume
• Quantifying Measurement Error in Arterial Travel Times Measured by Bluetooth Detectors
• Rethinking the Driver Population Factor: Examination of Freeways in California
• Toward a Capacity Analysis Procedure for Nonstandard Two-Way Stop-Controlled Intersections
• Volume-to-Capacity Estimation of Signalized Road Networks for Metropolitan Transportation Planning