The HCM procedures are usually employed in Argentina to analyze level of service in Freeways. However the vehicle and drivers characteristics differ between Argentina and USA. This paper reports a study carried out on an Argentinean freeway with two lanes in each direction. Using statistical analysis the speed flow curves were obtained for each FFS. It was found that, for local conditions, average speed (S) decreases faster than in HCM. For FFS lower than 95 km/h, S begins to decrease around 300 pc/h/ln, and for FFS greater than 100 km/h, S begins to decrease even for lower flows. According HCM, S and FFS are equal when Vp ⩽ (3100 — 15 FFS). The paper also reports the procedures followed to obtain and process the data, the statistical analysis and comparisons developed, and the new speed flows curves proposed for local conditions.
Speed Flow Curves in Argentinean Freeways
Sixth International Conference of Traffic and Transportation Studies Congress (ICTTS) ; 2008 ; Nanning, China
2008-07-17
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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