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Title: Investigating Total Annual Average Daily Traffic as a Surrogate for Motorcycle Volumes in Estimating Safety Performance Functions for Motorcycle Crashes
Accession Number: 01620100
Record Type: Component
Record URL: Availability: Find a library where document is available Abstract: Data on traffic volumes are required to estimate the safety performance functions (SPFs) used to develop crash modification factors and for various safety management applications. Estimation of SPFs for motorcycle crashes can be especially challenging because few jurisdictions collect motorcycle traffic volume data systematically. To address this challenge, analyses with data from Florida, Pennsylvania, and Virginia were conducted to explore how much predictive power for an SPF was lost when motorcycle traffic volumes were not known. The results of the analyses showed that when motorcycle volumes were unknown, the use of total annual average daily traffic on its own was sufficient to develop motorcycle crash SPFs. The potential bias from missing motorcycle-specific annual average daily traffic was sufficiently negligible where it existed, not to preclude SPF development. A more significant issue in the development of motorcycle crash SPFs is to work with a crash type that is relatively rare, so that SPFs cannot be developed for all motorcycle crash types or site types.
Monograph Title: Monograph Accession #: 01628862
Report/Paper Numbers: 17-01770
Language: English
Authors: Lyon, CraigPersaud, BhagwantHimes, ScottPagination: pp 9–16
Publication Date: 2017
ISBN: 9780309441650
Media Type: Digital/other
Features: Figures
(1)
; References
(6)
; Tables
(9)
TRT Terms: Geographic Terms: Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors
Files: TRIS, TRB, ATRI
Created Date: Dec 8 2016 10:37AM
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