Modelling Free Flow Speed on Two-Lane Rural Highways in Bosnia and Herzegovina
AbstractFree flow speed is used as a parameter in transportation planning and capacity analysis models, as well as speed-flow diagrams. Many of these models suggest estimating free flow speed according to measurements from similar highways, which is not a practical method for use in B&H. This paper first discusses problems with using these methodologies in conditions prevailing in B&H and then presents a free flow speed evaluation model developed from a comprehensive field survey conducted on nine homogeneous sections of state and regional roads.
Highway Capacity Manual 2010 (HCM 2010). TRB. National Research Council. Washington D.C.; 2010.
Handbuch für die Bemessung von Straßenverkehrsanlagen (HBS) (German Highway Capacity Manual). Forschungsgesellschaft für Straßen- und Verkehrswesen. Köln; 2005.
Traffic Assignment Manual. Bureau of Public Roads. Urban Planning Division. US Department of Commerce. Washington D.C.; 1964.
Modeling Operating Speed. TRB. Washington D.C.; 2011.
Lamm R, Choueiri EM. Recommendations for Evaluating Horizontal Alignment Design Consistency Based on Investigations in the State of New York. Transportation Research Record 1987;1122:68–78.
Morrall J, Talarico RJ. Side Friction Demand and Margins of Safety on Horizontal Curves. Transportation Research Record 1995;1435:145–152.
Gibreel GM, Easa SM, Hassan Y, El-Dimeery IA. State of the Art of Highway Geometric Design Consistency. Journal of Transportation Engineering. 1999;125:305-313.
Krammes RA et al. Horizontal alignement design consistency for rural two- lane highways. Report no. FHWA-RD-94-034. FHWA. Washington D.C.; 1995.
Fitzpatrick et al. Speed Prediction for Two-Lane Rural Highways. Report FHWA-RD-99-171. U.S. Department of Transportation; 2000.
Figueroa AM, Tarko AP. Speed Factors on Two-Lane Rural Highways in Free-Flow Conditions. Transportation Research Record. 2005;1912:46-49.
Misaghi P, Hassan Y. Modeling Operating Speed and Speed Differential on Two-Lane Rural Roads. Journal of Transportation Engineering. 2005;131:408-417.
Cafiso S, Di Graziano A, Di Silvestro G, La Cava G. Safety Performance Indicators for Local Rural Roads: A Comprehensive Procedure from Low-Cost Data Survey to Accident Prediction Model. presented at the 87th Annual Meeting of the Transportation Research Board. Washington D.C.; 2008.
Marchionna A, Perco P. Operating Speed Profile Prediction Model for Two-Lane Rural Roads in the Italian Context. Journal Advances in Transportation Studies. 2008;XIV.
Esposito T, Mauro R, Russo F, Dell’Acqua G. Operating speed prediction models for sustainable road safety management. ICSDC 2011 Integrating Sustainability Practices in the Construction Industry - Proceedings of the International Conference on Sustainable Design and Construction 2011;712-721.
De Luca M, Dell’Acqua G. Freeway safety management: case studies in Italy. TRANSPORT. 2012;27:320-326. doi: 10.3846/16484142.2012.724447
Cvitanić D, Vukoje B, Breški D. Metode za osiguranje konzistencije toka trase. Građevinar. 2012;5(64):385-393
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).