1–20 von 26 Ergebnissen
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    Estimating the Safety Effects of Work Zone Characteristics and Countermeasures A Guidebook. National Cooperative Highway Research Program (NCHRP) Research Report 869

    G. L. Ullman / M. Pratt / M. D. Fontaine et al. | NTIS | 2018
    Schlagwörter: Construction Equipment, Materials, & Supplies

    Traffic Enforcement Strategies for Work Zones

    G. L. Ullman / M. A. Brewer / J. E. Bryden et al. | NTIS | 2013
    Schlagwörter: Construction

    Traffic Law Enforcement in Work Zones: Phase II Research

    G. L. Ullman / M. A. Brewer / J. E. Bryden et al. | NTIS | 2010
    Schlagwörter: Construction

    Traffic Safety Evaluation of Nighttime and Daytime Work Zones

    G. L. Ullman / M. D. Finley / J. E. Bryden et al. | NTIS | 2008
    Schlagwörter: Highway construction , Construction

    Studies to Improve Temporary Traffic Control at Urban Freeway Interchanges and Pavement Marking Material Selection in Work Zones

    G. L. Ullman / M. D. Finley / A. M. Pike et al. | NTIS | 2008
    Schlagwörter: Construction Equipment, Materials, & Supplies

    Improve Temporary Traffic Control Guidelines for Urban Freeway Interchanges, Project Summary

    G. L. Ullman / M. D. Finley / A. M. Pike et al. | NTIS | 2007
    Schlagwörter: Construction site traffic control , Construction site signs

    Evaluating the Safety Risks of Active Night Work Zones

    G. L. Ullman / B. R. Ullman / M. D. Finley | NTIS | 2005
    Schlagwörter: Highway construction

    Work Zone Crash Influences on Texas Roadways

    G. L. Ullman / S. D. Schrock / A. S. Cothron et al. | NTIS | 2005
    Schlagwörter: Construction sites

    Motorist Safety at Active Nighttime Work Zones in Texas

    G. L. Ullman / M. D. Finley / B. R. Ullman | NTIS | 2005
    Schlagwörter: Highway construction

    Assessing the Safety Impacts of Active Night Work Zones in Texas

    G. L. Ullman / M. D. Finley / B. R. Ullman | NTIS | 2004
    Schlagwörter: Highway construction

    Analysis of Fatal Work Zone Crashes in Texas

    S. D. Schrock / G. L. Ullman / A. S. Cothron et al. | NTIS | 2004
    Schlagwörter: Construction sites

    Work Zone Lane Closure Warning Light System

    M. D. Finley / G. L. Ullman / C. L. Dudek | NTIS | 1999
    Schlagwörter: Construction site traffic control , Construction sites

    Work Zone-Related Traffic Legislation: A Review of National Practices and Effectiveness

    G. L. Ullman / P. J. Carlson / N. D. Trout et al. | NTIS | 1997
    Schlagwörter: Road construction

    US-75 North Central Expressway Reconstruction: October 1994 and May 1995 Traffic Conditions and Survey Results

    S. E. Ranft / N. Trout / G. L. Ullman | NTIS | 1995
    Schlagwörter: Construction

    Traffic Pattern Assessment and Road User Delay Costs Resulting from Roadway Construction Options

    R. A. Krammes / G. L. Ullman / K. D. Tyer et al. | NTIS | 1993
    Schlagwörter: Highway construction , Construction sites , Construction site traffic control

    U.S. 75 North Central Expressway Reconstruction: Lemmon/Oak Lawn/Peak Screen Line Automobile User Panel, October 1992 Survey Results

    G. L. Ullman / R. A. Krammes | NTIS | 1993
    Schlagwörter: Construction site traffic control , Highway construction

    User's Manual for QUEWZ-92

    R. A. Krammes / G. L. Ullman / J. L. Memmott et al. | NTIS | 1993
    Schlagwörter: Highway construction

      User's Manual for QUEWZ-92

      R. A. Krammes / G. L. Ullman / J. L. Memmott et al. | NTIS | 1993
      Schlagwörter: Highway construction

    U.S. 75 North Central Expressway Reconstruction: Northwest Highway Screen Line Automobile and Transit User Panels, May 1992 Survey Results

    G. L. Ullman / K. M. Collins / R. A. Krammes | NTIS | 1992
    Schlagwörter: Construction site traffic control , Highway construction

    Analysis of Accidents at Long-Term Construction Projects in Texas (Revised)

    G. L. Ullman / R. A. Krammes | NTIS | 1991
    Schlagwörter: Construction site traffic control , Construction site accidents , Highway construction

    U.S. 75 North Central Expressway Reconstruction: Northwest Highway Screen Line Automobile and Transit User Panels, November 1990 Survey Results

    G. L. Ullman / R. A. Krammes | NTIS | 1991
    Schlagwörter: Construction site traffic control , Highway construction