Speeding is one of the major causes of the frequent and severe traffic accidents that occur in school zones. Two field studies were conducted to assess the short-term and long-term effectiveness of speed-monitoring displays (SMDs) for speed reduction in school zones. The performance difference is discussed according to several dependent variables, including the average speed, the 85th percentile speed, and the distribution of speeds. The short-term study results showed that the speed of vehicles began to be reduced when the driver recognized the presence of an SMD, and the average speed was reduced by about 17.5% (8.2 km/h) at the SMD location. This speed reduction was observed throughout the day, regardless of the time of day. A similar performance trend was identified from the long-term study results, but the average speed reduction was slightly reduced to 12.4% (5.8 km/h) at the SMD location. However, statistical analyses showed that the speed differences were statistically significant. In addition, analysis of the results of the speed distribution showed that the number of speeding vehicles was greatly reduced after the SMD was installed, and the 85th percentile speed also decreased from 54.3 to 46.3 and 45.0 km/h in the short-term and the long-term studies, respectively. Therefore, it was concluded that the application of SMDs in school zones produced a positive impact on the drivers’ behaviors for a long period of time.


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    Titel :

    Effectiveness of Speed-Monitoring Displays in Speed Reduction in School Zones


    Weitere Titelangaben:

    Transportation Research Record


    Beteiligte:
    Lee, Choulki (Autor:in) / Lee, Sangsoo (Autor:in) / Choi, Bongsoo (Autor:in) / Oh, Youngtae (Autor:in)


    Erscheinungsdatum :

    2006-01-01




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Effectiveness of Speed-Monitoring Displays in Speed Reduction in School Zones

    Lee, C. / Lee, S. / Choi, B. et al. | British Library Conference Proceedings | 2006


    Effectiveness of Speed-Monitoring Displays in Speed Reduction in School Zones

    Lee, Choulki / Lee, Sangsoo / Choi, Bongsoo et al. | Transportation Research Record | 2006