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Viggers, Carlos Eduardo (2018) The Use of Intermediate Facilities in Winter Gritting Operations. [Dissertation (University of Nottingham only)]

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Abstract

Planning gritting services is a large-scale task that involves a significant number of physical and

economic resources. During extreme cold weather conditions, roads become slippery and with it, the

number of accidents increase. While gritting services prevent accidents and increases safety

conditions, without them costs of accidents and delays would be enormous. For planning gritting

services, many considerations must be included such as the capacity of gritters and the sequence in

which a highway is going to be gritted. In this study, heuristic models were created in order to obtain

the optimal sector partition, the routing plans and the calculations for the total distance travelled to

grit a given area in two conditions: when turning is possible everywhere and when turning is restricted

to turning nodes. In both conditions, scenarios without the use and with the use of intermediate

facilities were considered. The complexity of the analysed scenarios gradually increases, starting by

simple configurations with just one facility as the replenishment point and ending with multiple

facilities configurations where turning is limited. This study does not consider costs and time-limitation

variables as constraints for developing the heuristic model.

Item Type:	Dissertation (University of Nottingham only)
Depositing User:	Viggers, Carlos
Date Deposited:	21 Apr 2022 15:03
Last Modified:	21 Apr 2022 15:03
URI:	https://eprints.nottingham.ac.uk/id/eprint/54039

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