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Show simple item record Moselakgomo, M Naidoo, M Letebele, MO 2015-10-30T09:43:40Z 2015-10-30T09:43:40Z 2015-07
dc.identifier.citation Moselakgomo, M, Naidoo, M and Letebele, MO. 2015. indicative effects of inefficient urban traffic flow on fuel cost and exhaust air pollutant emissions. In: The 34th Southern African Transport Conference, CSIR International Convention Centre, Pretoria, 6-9 July 2015, 6pp en_US
dc.description This is the Abstract only. The fulltext of the paper can be found at the SATC website or UP repository. en_US
dc.description.abstract Poor urban traffic management such as poor intersection controls, congestions, illegal roadway blockages and construction works causes “stop-go” driving conditions with excessive idling resulting in wasted fuel and increased air pollutant emissions (CO(sub2), CO, NOx, HC, etc.) during idling conditions and acceleration from a stop position due to more energy required to move vehicles from a halt. In this study the effects of traffic signal coordination on fuel cost and gas emissions were investigated by comparing the amount of idling time on streets with coordinated signals to those with uncoordinated signals during the off peak period. It was found that signal coordination can reduce the idling fuel cost by more than 25 cents per kilometre in the CBDs. The reductions in idling gas emissions were found to be 77% for both CO and HC and 80% CO(sub2). These are significant reductions if the whole CBD network and all the vehicles within the network per annum are taken in to account. en_US
dc.language.iso en en_US
dc.relation.ispartofseries Worklist;15351
dc.subject Urban traffic management en_US
dc.subject The 34th Southern African Transport Conference (2015) en_US
dc.subject Air pollutant emissions en_US
dc.subject Inefficient urban traffic flow en_US
dc.subject Fuel costs en_US
dc.title The indicative effects of inefficient urban traffic flow on fuel cost and exhaust air pollutant emissions en_US
dc.type Presentation en_US

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