1–20 von 45 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
    Verlag: Texas Transportation Inst., College Station.

    Evaluation of Warning Lights on Maintenance of Traffic Devices and Development of Possible Alternatives

    L. Theiss / J. D. Miles / P. P. Pratt et al. | NTIS | 2013
    Verlag: Texas Transportation Inst., College Station

    Merging Taper Lengths for Short Duration Lane Closures

    L. Theiss / M. D. Finley / G. L. Ullman | NTIS | 2009
    Verlag: Texas Transportation Inst., College Station

    Investigating Pedestrian Components in Temporary Traffic Control

    B. R. Ullman / M. A. Brewer / K. Fitzpatrick et al. | NTIS | 2008
    Verlag: Texas Transportation Inst., College Station

    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
    Verlag: Texas Transportation Inst., College Station

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

    G. L. Ullman / M. D. Finley / A. M. Pike et al. | NTIS | 2007
    Verlag: Texas Transportation Inst., College Station

    Work Zone Crash Influences on Texas Roadways

    G. L. Ullman / S. D. Schrock / A. S. Cothron et al. | NTIS | 2005
    Verlag: Texas Transportation Inst., College Station

    Evaluating the Safety Risks of Active Night Work Zones

    G. L. Ullman / B. R. Ullman / M. D. Finley | NTIS | 2005
    Verlag: Texas Transportation Inst., College Station

    Motorist Safety at Active Nighttime Work Zones in Texas

    G. L. Ullman / M. D. Finley / B. R. Ullman | NTIS | 2005
    Verlag: Texas Transportation Inst., College Station

    Identification of Traveler Information and Decision-Making Needs for Managed Lane Users

    S. D. Schrock / G. L. Ullman / A. A. Williams et al. | NTIS | 2004
    Verlag: Texas Transportation Inst., College Station

    Analysis of Fatal Work Zone Crashes in Texas

    S. D. Schrock / G. L. Ullman / A. S. Cothron et al. | NTIS | 2004
    Verlag: Texas Transportation Inst., College Station

    Assessing the Safety Impacts of Active Night Work Zones in Texas

    G. L. Ullman / M. D. Finley / B. R. Ullman | NTIS | 2004
    Verlag: Texas Transportation Inst., College Station

    Evaluation of Dynamic Speed Display Signs (DSDS)

    E. R. Roxe / G. L. Ullman | NTIS | 2003
    Verlag: Texas Transportation Inst., College Station

    Review of Traffic Management and Enforcement Problems and Improved Options at High-Volume, High-Speed Work Zones in Texas

    G. L. Ullman / M. D. Fontaine / S. D. Schrock et al. | NTIS | 2001
    Verlag: Texas Transportation Inst., College Station

    Work Zone Lane Closure Warning Light System

    M. D. Finley / G. L. Ullman / C. L. Dudek | NTIS | 1999
    Verlag: Texas Transportation Inst., College Station

    Visibility, Spacing, and Operation of Freeway Lane Control Signals

    G. L. Ullman / K. D. Parma / M. D. Peoples et al. | NTIS | 1996
    Verlag: Texas Transportation Inst., College Station

    Traffic Management System Considerations in Freeway Design and Redesign. (Revised)

    G. L. Ullman | NTIS | 1996
    Verlag: Texas Transportation Inst., College Station

    Yellow Transition Lane Control Signal Symbols for Freeway Traffic Management

    G. L. Ullman / K. D. Parma / M. D. Peoples et al. | NTIS | 1996
    Verlag: Texas Transportation Inst., College Station

    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
    Verlag: Texas Transportation Inst., College Station

    Benefits of Real-Time Travel Information in Houston, Texas

    K. N. Balke / G. L. Ullman / W. R. McCasland et al. | NTIS | 1995
    Verlag: Texas Transportation Inst., College Station