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Paper 7 - Air quality control at congested urban intersections

Paper 7 - Air quality control at congested urban intersections
Paper 7 - Air quality control at congested urban intersections
Urban areas of Beirut suffer severe traffic congestion due to a deficient transportation system, resulting in significant economic losses. Grade separations are proposed at several congested intersections to alleviate this problem. Air quality, which greatly depends on the geometric configuration of an intersection, is a major environmental concern at these locations. This paper presents an air quality impact assessment at a typical urban intersection and addresses potential mitigation strategies for air quality management in urban areas. For this purpose, air quality measurements were conducted at representative locations to define existing pollutant exposure levels. Mathematical simulations were performed for several scenarios, both with and without grade separations, changes in vehicle mix, and level of service. Assessment of air quality impact significance was conducted by comparing simulated exposure levels with relevant air quality standards. Sensitivity analysis indicated that the introduction of a grade separation, changes in vehicle mix, and level of service lead to decreased exposure to air pollutants by up to 80%.
1094-8848
85-103
El-Fadel, Mutasem
6206783b-f040-458f-90b6-2cb2c361d7ae
Abou Najm, Majdi
514d0c12-04f2-4ae6-8ffe-5f7898acc99e
Sbayti, Hayssam
f498a406-e3b4-469e-85ca-4a8fbe7046f7
El-Fadel, Mutasem
6206783b-f040-458f-90b6-2cb2c361d7ae
Abou Najm, Majdi
514d0c12-04f2-4ae6-8ffe-5f7898acc99e
Sbayti, Hayssam
f498a406-e3b4-469e-85ca-4a8fbe7046f7

El-Fadel, Mutasem, Abou Najm, Majdi and Sbayti, Hayssam (2000) Paper 7 - Air quality control at congested urban intersections. Journal of Transportation and Statistics, 3 (2), 85-103.

Record type: Article

Abstract

Urban areas of Beirut suffer severe traffic congestion due to a deficient transportation system, resulting in significant economic losses. Grade separations are proposed at several congested intersections to alleviate this problem. Air quality, which greatly depends on the geometric configuration of an intersection, is a major environmental concern at these locations. This paper presents an air quality impact assessment at a typical urban intersection and addresses potential mitigation strategies for air quality management in urban areas. For this purpose, air quality measurements were conducted at representative locations to define existing pollutant exposure levels. Mathematical simulations were performed for several scenarios, both with and without grade separations, changes in vehicle mix, and level of service. Assessment of air quality impact significance was conducted by comparing simulated exposure levels with relevant air quality standards. Sensitivity analysis indicated that the introduction of a grade separation, changes in vehicle mix, and level of service lead to decreased exposure to air pollutants by up to 80%.

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Published date: September 2000

Identifiers

Local EPrints ID: 74331
URI: http://eprints.soton.ac.uk/id/eprint/74331
ISSN: 1094-8848
PURE UUID: 39ba06ef-bba1-4f47-8b60-4997bac7fba4

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:46

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