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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Nacional Autónoma de México
2014
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| Online Access: | https://www.redalyc.org/articulo.oa?id=47431860002 |
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Table of Contents:
- Assessing the Value of Dela y to Short-Haul Carriers Q. Miao X. B. Wang T. M. Adams Ingeniería Short Simulation Logit Model Haul Carrier Value of Time This paper aims at examining the commercial vehicle operator s’ value of delay (VOD) due to highway congestion in urban area. The VOD is a fundamental parameter that influences the privat e sector’s response to public freight projects and policies. This paper adopts two methods to es timate the VOD; one being the stated preference (SP) survey and the other being simulation of a carrier’s fleet operations. The former applies a Logit model and estimates a driver perceived VOD as $56.48 per vehi cle per hour for the regular short-haul delivers. The latter gauges the economic impact of delay on carrier’s fleet operations in the Houston highway network. The operations essentially reflect more of a just-in-time system due to the rather stri ngent time window constraints. The simulation is conducted on a rolling time horizon with a heuristic algorithm for di spatching trucks. The major findings include, but are not limited to as follows. The drivers paid by miles perceive a significantly higher VOD than the others; the drivers are more willing to pay for a faster trip when the toll charges do not come out of their own pockets; VOD increases with uncertainty and demand for capacity. The comparison between the survey and the simulation results also indicates that the interviewed drivers perceive a significantly lower VOD than they ma y actually experience as a fleet, an indicator of myopic vision. 2014 artículo científico 1665-6423 https://www.redalyc.org/articulo.oa?id=47431860002 en http://www.redalyc.org/revista.oa?id=474 Journal of Applied Research and Technology application/pdf Universidad Nacional Autónoma de México Journal of Applied Research and Technology (México) Num.4 Vol.12