Evaluating sustainability of truck weight regulations: A system dynamics view

Abstract

Abstract:Purpose: Targeting the problem of overloaded trucking regarding the Highway Transportation of iron ore from Caofeidian to Tangshan (HTCT), this paper aims to assess the long-term effects of alternative Truck Weight Regulation (TWR) policies on the sustainability of the HTCT.Design/methodology/approach: This paper develops a model for policy evaluation using System Dynamics (SD). The model, comprising six interrelated modules, is capable of simulating the effects of TWR policies on trucking issues, such as freight flow, truck traffic flow, pavement performance, highway transport capacity and trucking time. The model further sheds light on the Cumulative Economic Cost (CEC), including the transport cost and time cost of freight owners, and the Cumulative Social Cost (CSC), including the pavement maintenance cost, greenhouse gas emission cost, atmospheric pollutants emission cost and traffic accidents cost, so the effects of TWR policies on the sustainability of the HTCT could be evaluated. expected by the local government. To be specific, (1) if CSC is considered to be much less important than CEC, the local government should continue implementing TTP with the maximum overload ratio; (2) if CSC is considered to be much more important than CEC, then TRP is recommended; and (3) if CSC is considered to be slightly more important than CEC, TMP with an overload ratio of 80% is best. Practical implications:The conclusions of this paper may help the local government design appropriate TWR policies to achieve the sustainability of the HTCT.Originality/value: To the best of our knowledge, this is the first effort to evaluate TWR policies on the sustainability of the highway freight system based on SD.

Evaluating Impacts of Overweight in Road Freight Transportation: A Case Study in Brazil with System Dynamics

“…The problem of vehicle overloading in China [38] is similar to the one found in freight transportation on Brazilian highways. However, the model presented by the authors has some limitations, such as the consideration of a route dedicated to transport a specific load.…”

“…Another SD model was proposed to evaluate the long-term effects of weight regulation policies of trucks in China on the sustainability of the activity [38]. The model presents the cumulative economic cost, including the operational cost and the cost associated with transportation time, in addition to the accumulated social cost, including pavement maintenance, pollutant emissions and accident costs, so that the policy effects on road transportation sustainability could be evaluated.…”

“…Scenario 2 was also simulated and compared to the Reference Scenario. Following the notation by References [37,38], three loading policies were adopted considering a variation of zero to 100% of overweight: Strict Policy (no overweight admitted); Moderate Policy (admits up to 50% of overweight); and Tolerant Policy (admits between 50% and 100% of overweight). The scenario with 100% overweight was hypothetical for simulation purposes.…”

Dynamic Performance Management: An Approach for Managing the Common Goods

“…Ridesharing services [141] dynamic ridesharing platform that should operate mostly in urban areas Truck weight regulations [142] long-term effects of alternative truck weight regulation policies on sustainability of highway transportation…”

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