@article{ref1,
title="Optimisation of motorway operations via ramp metering and variable speed limits",
journal="Transportation planning and technology",
year="2015",
author="Li, Ying and Chow, Andy H.F.",
volume="38",
number="1",
pages="94-110",
abstract="This paper presents a modelling and optimisation framework for deriving ramp metering and variable speed control strategies. We formulate the optimal control problems aiming to minimise the travel delay on motorways based upon a macroscopic cell transmission model of traffic. The optimal ramp metering optimisation is formulated as a linear programming (LP) while the variable speed control problem is formulated as a mixed integer LP. The optimisation models are applied to a real scenario over a section of M25 motorway in the UK. This paper also includes various analyses on the sensitivity of the optimal control solutions with respect to different network configurations and model assumptions.<p />",
language="en",
issn="0308-1060",
doi="10.1080/03081060.2014.976982",
url="http://dx.doi.org/10.1080/03081060.2014.976982"
}