Design consistency refers to highway geometry’s conformance with driver expectancy. Generally, drivers make fewer errors at geometric features that conform with their expectations. A proposed method for evaluating design consistency is to predict the speed along an alignment by using a speed-profile model. A speed-profile model was developed by using the following: speed prediction equations that calculate the expected speed at horizontal, vertical, or combination curves; assumed desired speed for the roadway; TWOPAS equations that determine the performance-limited speeds at every point; acceleration and deceleration rates; and several documented assumptions. The speed-profile model can be used to evaluate the design consistency of a facility or to generate a speed profile along an alignment. In conclusion, the speed-profile model developed appears to provide a suitable basis for the Interactive Highway Safety Design Model design consistency module.


    Zugriff

    Download

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Speed-Profile Model for Two-Lane Rural Highways


    Weitere Titelangaben:

    Transportation Research Record


    Beteiligte:


    Erscheinungsdatum :

    2000-01-01




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Speed-Profile Model for Two-Lane Rural Highways

    Fitzpatrick, Kay | Online Contents | 2000


    Speed Prediction for Two-Lane Rural Highways

    K. Fitzpatrick / L. Elefteriadou / D. W. Harwood et al. | NTIS | 2000


    Speed Variability on Rural Two-Lane Highways

    Collins, Jon | Online Contents | 1999


    Speed Variability on Rural Two-Lane Highways

    Collins, Jon / Fitzpatrick, Kay / Bauer, Karin M. et al. | Transportation Research Record | 1999


    Operating Speed Model for Low-Speed Rural Two-Lane Highways

    Banihashemi, Mohamadreza / Dimaiuta, Michael / Wang, Hui | Transportation Research Record | 2011