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A resource optimization framework for improving railway-highway grade crossing safety in Canada

A resource optimization framework for improving railway-highway grade crossing safety in Canada
A resource optimization framework for improving railway-highway grade crossing safety in Canada
This paper presents a new approach to address the problem of allocating federal resources and identifying upgrading projects for improving the safety of at-grade crossings in Canada. The proposed approach is unique in two key aspects. First, a risk-based network screening process is adopted to identify the priority sites for providing a justifiable basis for distributing the total budget at a regional level as well as narrowing the search space in the subject optimization step. Secondly, a mathematical programming approach is applied to formalize the resource allocation process with explicit consideration of the expected benefits - risk reduction and the costs of implementing the projects. This approach is expected to improve the process of identifying the optimal set of upgrading projects within each region, thus maximizing the return of investment. A full-scale case study from the Canadian crossing network is conducted to demonstrate the application of the proposed approach.
Grade Crossing safety, crash Frequency, crash severity, Crash cost, resource Allocation, resource optimization
0315-1468
Thakali, Lalita
7fd52523-5652-4103-bb17-ccfd74a50adc
Liping, Fu
5a8cfcc4-d76e-4456-b4e0-7877de2a0eb1
Heydari, Shahram
0d12a583-a4e8-4888-9e51-a50d312be1e9
Thakali, Lalita
7fd52523-5652-4103-bb17-ccfd74a50adc
Liping, Fu
5a8cfcc4-d76e-4456-b4e0-7877de2a0eb1
Heydari, Shahram
0d12a583-a4e8-4888-9e51-a50d312be1e9

Thakali, Lalita, Liping, Fu and Heydari, Shahram (2020) A resource optimization framework for improving railway-highway grade crossing safety in Canada. Canadian Journal of Civil Engineering. (In Press)

Record type: Article

Abstract

This paper presents a new approach to address the problem of allocating federal resources and identifying upgrading projects for improving the safety of at-grade crossings in Canada. The proposed approach is unique in two key aspects. First, a risk-based network screening process is adopted to identify the priority sites for providing a justifiable basis for distributing the total budget at a regional level as well as narrowing the search space in the subject optimization step. Secondly, a mathematical programming approach is applied to formalize the resource allocation process with explicit consideration of the expected benefits - risk reduction and the costs of implementing the projects. This approach is expected to improve the process of identifying the optimal set of upgrading projects within each region, thus maximizing the return of investment. A full-scale case study from the Canadian crossing network is conducted to demonstrate the application of the proposed approach.

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More information

Accepted/In Press date: 15 May 2020
Keywords: Grade Crossing safety, crash Frequency, crash severity, Crash cost, resource Allocation, resource optimization

Identifiers

Local EPrints ID: 441247
URI: http://eprints.soton.ac.uk/id/eprint/441247
ISSN: 0315-1468
PURE UUID: c6ce92f8-f62f-4c32-9fdc-040c0ea4c7a5

Catalogue record

Date deposited: 08 Jun 2020 16:30
Last modified: 07 Oct 2020 05:26

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Contributors

Author: Lalita Thakali
Author: Fu Liping
Author: Shahram Heydari

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