COLOMBO Deliverable 4.3: Pollutant Emission Models and Optimisation

Abstract

The first part of this document is dedicated to descriptions of work performed on the PHEMlight emission model after the delivery of D4.2. The major outcome are in-depth comparisons of the applicability of both models as well as of the results they deliver. It is emphasized that PHEMlight’s improved capability to model a coasting / motoring behaviour properly makes it a better choice for subsequent work on emission reduction. The optimisation of traffic in means of reducing its environmental impact is described in subsequent parts of the document. At first, driver-centric approaches (ecological driving) are presented. This starts with investigations on the optimal “atomic” cruising and acceleration/deceleration behaviour. Subsequently, these values are used to evaluate different approaches for an emission-optimal driver behaviour at traffic lights. The evaluation uses two approaches developed within COLOMBO and puts them against work known from literature on GLOSA systems. Then, the macroscopic view on emission reduction is given, targeting on how traffic lights – synchronised or standalone – should be designed to reduce the amount of pollutants produced on the controlled roads. The presented results are based on real-world measurements of traffic at the Wiener Straße located in Graz. They will be subsequently used for a guidance on designing emission-friendly traffic light systems.