VOL 24 NO 1 REGD D NO DA 15 589 | Dhaka,, Thursday, N November 10 2016 http://print.thefinancialexpress‐bd.com/2016/11/10/1562599
The econo omics o of trafffic traavails M. S. Sid ddiqui
Vehicles caught in a city taailback lie as like ass painted on a canvaas.
Traffic co ongestion on n road netwo orks occurs as a a result off excessive uuse of road innfrastructuree beyond capacity, c and d it is charactterised by sllower speedss, longer tripp hours and iincreased vehicularr queuing. It can be percceived as an unavoidable u e consequencce of scarce transport facilities such as road d space, park king areas, ro oad signals aand effectivee traffic mannagement, drivers' behaviour, b veehicle breakdown on roaads and too m many cars w within the cityy. Congestiion has threee important dimensions d of o variation rregardless off location orr timing. Thee frequency y and severiity of congesstion delays increase as ttraffic volum mes grow to exceed roaddsystem caapacity. Thee dimensionss are: (a)
Thee spatial pattern of trafficc congestion n may vary --- it can be arrea-wise or llocation-speccific.
(b)
Thee temporal pattern of trafffic congestiion may varyy -- it can occcur during m morning or