VALIDATION OF SURROGATE PERFORMANCE MEASURE OF TWO-LANE INTERMUNICIPAL HIGHWAYS

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SHARIAT A.; KHAKI A.M.; NOSRATI H.

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Journal: TRAFFIC MANAGEMENT STUDIES Year:2010 | Volume:5 | Issue:17 Page(s): 25-38

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Title

VALIDATION OF SURROGATE PERFORMANCE MEASURE OF TWO-LANE INTERMUNICIPAL HIGHWAYS

Author(s)

SHARIAT A. | KHAKI A.M. | NOSRATI H. | Issue Writer Certificate

Keywords

TWO-LANE INTERMUNICIPAL HIGHWAYSQ3

PERFORMANCE MEASUREQ2

PERCENT TIME SPENT FOLLOWINGQ3

HEADWAYQ2

LEVEL OF SERVICEQ3

Abstract

2TWO-LANE INTERMUNICIPAL HIGHWAYS serve two functions in the highway network: mobility and accessibility. To estimate the LEVEL OF SERVICE on two-lane, two-way highways two PERFORMANCE MEASUREs are used: PERCENT TIME SPENT FOLLOWING (PTSF) and Average Travel Speed (ATS). Due to the difficulty of measuring PTSF in the field, Highway Capacity Manual (HCM2000) suggests a surrogate measure to estimate the PTSF in the field, that is, the percentage of vehicles traveling with HEADWAYs of less than three seconds. The present research tries to evaluate validity of this surrogate measure in Iran. For this purpose, traffic flow was analyzed in three intermunicipal two-lane highways with inclusive counter. By using the counter data in these roads, the percentage of vehicles with HEADWAYs of less than three seconds in various intervals is measured, and then using IHSDM software, traffic flow and geometric qualifications of routes in each road are simulated. The results show that values of PTSF from simulating is very close to surrogate measure, namely percentage of vehicles with HEADWAYs of less than three seconds. Paying attention to traffic and geometric qualifications in Iran's roads, this research shows that surrogate measure may be used for measuring PTSF.

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APA: Copy

SHARIAT, A., KHAKI, A.M., & NOSRATI, H.. (2010). VALIDATION OF SURROGATE PERFORMANCE MEASURE OF TWO-LANE INTERMUNICIPAL HIGHWAYS. TRAFFIC MANAGEMENT STUDIES, 5(17), 25-38. SID. https://sid.ir/paper/154296/en

Vancouver: Copy

SHARIAT A., KHAKI A.M., NOSRATI H.. VALIDATION OF SURROGATE PERFORMANCE MEASURE OF TWO-LANE INTERMUNICIPAL HIGHWAYS. TRAFFIC MANAGEMENT STUDIES[Internet]. 2010;5(17):25-38. Available from: https://sid.ir/paper/154296/en

IEEE: Copy

A. SHARIAT, A.M. KHAKI, and H. NOSRATI, “VALIDATION OF SURROGATE PERFORMANCE MEASURE OF TWO-LANE INTERMUNICIPAL HIGHWAYS,” TRAFFIC MANAGEMENT STUDIES, vol. 5, no. 17, pp. 25–38, 2010, [Online]. Available: https://sid.ir/paper/154296/en

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