R. Pfefer

发表

Effects of a Towaway Reporting Threshold on Crash Analysis Results

Herman F Huang, Charles Zegeer, Jun Wang, 1998 .

Guidance for Implementation of the AASHTO Strategic Highway Safety Plan. Volume 16: A Guide for Reducing Alcohol-Related Collisions

Ronald Pfefer, Timothy R Neuman, K L Slack, 2005 .

GUIDANCE FOR IMPLEMENTATION OF THE AASHTO STRATEGIC HIGHWAY SAFETY PLAN. VOLUME 4: A GUIDE FOR ADDRESSING HEAD-ON COLLISIONS

Ronald Pfefer, Timothy R Neuman, K L Slack, 2003 .

GUIDANCE FOR IMPLEMENTATION OF THE AASHTO STRATEGIC HIGHWAY SAFETY PLAN. VOLUME 1: A GUIDE FOR ADDRESSING AGGRESSIVE-DRIVING COLLISIONS

Ronald Pfefer, Timothy R Neuman, K L Slack, 2003 .

Guidance for Implementation of the AASHTO Strategic Highway Safety Plan. Volume 17: A Guide for Reducing Work Zone Collisions

James E Bryden, Ronald Pfefer, Timothy R Neuman, 2005 .

TRANSIT PLANNING IN A SMALL COMMUNITY: A CASE STUDY

Peter R. Stopher, Ronald C Pfefer, P. Stopher, 1976 .

A STUDY OF LEFT-HAND EXIT RAMPS ON FREEWAYS

D. S. Berry, Ronald C Pfefer, Donald S Berry, 1963 .

GUIDANCE FOR IMPLEMENTATION OF THE AASHTO STRATEGIC HIGHWAY SAFETY PLAN. VOLUME 2: A GUIDE FOR ADDRESSING COLLISIONS INVOLVING UNLICENSED DRIVERS AND DRIVERS WITH SUSPENDED OR REVOKED LICENSES

Ronald Pfefer, Timothy R Neuman, K L Slack, 2003 .