New Solutions to Reduce the Environmental Impact of Road Traffic Emissions, Using Sumo

Abstract

The impact of road traffic on the environment is a key factor in traffic management and the design of smart cities today. Alternative fuel technologies aim to reduce emissions and provide environmentally sustainable solutions. Thus, the potential of alternative fuel technologies needs to be taken into account in future environmental policy. This paper examines the possibility of reducing greenhouse gas emissions by using liquefied natural gas (LNG) as an alternative fuel technology for light-duty vehicles. The survey uses a scenario-based traffic simulation approach by applying a simulation of microscopic traffic emissions. We have considered two scenarios: optimistic, in the case of a total intervention of the State, which supposes 100% of LNG and 0% of conventional fuel (diesel and gasoline). Pessimistic in the absence of state intervention, assumes 0% LNG and 100% of conventional fuels. SUMO includes two emission assessment models. Both models implement different classes of vehicle emissions. The first model is based on HBEFA v2.1 (a continuous reformulation of the HBEFA v2.1 emissions database), the second is PHEMLIGHT, a derivation of the original PHEM emission model. The results presented in this article are generated by using PHEMLIGHT.