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原文传递 Highway Safety Manual Applied in Missouri- Freeway/Software.

题名：	Highway Safety Manual Applied in Missouri- Freeway/Software.
作者：	Sun, C.; Edara, P.; Brown, H.; Nemmers, C.; Claos, B.; Khezerzadeh, A.
关键词：	Highway safety, Safety analysis, Interchanges and intersections, roadside inventory data, Ramps (Interchange), Freeway facilities, Calibration, Speed change lanes, Data colletion, Crash report
摘要：	AASHTO’s Highway Safety Manual (HSM) facilitates the quantitative safety analysis of highway facilities. In a 2014 supplement, freeway facilities were added to the original HSM manual which allows the modeling of highway interchanges. This report documents the calibration of the most vital freeway interchange facility types in Missouri. These facility types include nine freeway interchange terminals, including diamond, partial cloverleaf, and full cloverleaf interchanges. The non-terminal facilities included entrance and exit speed-change lanes, and entrance and exit ramps. The calibrated facilities applied to both rural and urban locations. For each facility type, sample sites were randomly selected from an exhaustive master list. Four types of data were collected for each site: geometric, AADT, traffic control, and crash. Crash data was especially noteworthy because of the crash landing problem, i.e. crashes were not located on the proper interchange facility. A significant companion crash correction project was undertaken involving the review of 12,409 crash reports, and the detailed review of 9,169 crash reports. Using the corrected data, 44 calibration values were derived for freeway terminal and non-terminal facilities. These values are the first reported freeway interchange calibration values since the release of the 2014 HSM supplement.
总页数：	Sun, C.; Edara, P.; Brown, H.; Nemmers, C.; Claos, B.; Khezerzadeh, A.
报告类型：	科技报告