Friday, October 10, 2008

Restricting the right turn for improving traffic flow

The road traffic problems in Bangalore City are increasing day by day. The primary reason for the increase is the increase in Road Vehicles consequent to the increase in City Businesses in turn increasing the Population. This phenomenon is not Unique to Bangalore alone. The population in our country has grown from 0.40 billion in 1940 to 1.17 billion in 2008. The primary reason, for the increasing chaos in the road traffic, is this phenomenal population explosion.

Any road design is based on a given maximum traffic load. The load on roads can be reduced by having alternative mass Transport systems like Metro, Mono and suburban Rail systems. The design of the total system is in turn limited by the design total load.

Thus any city road system design can support a max load to which the road system is originally designed. Adding additional modes of transport can delay the ultimate load on the road system but can not avoid it.

It is important to understand this concept of “maximum permissible limit on total number of vehicles allowed in a city” will finally decide the limit on growth of any city, especially cities like Mumbai

Recently in a meeting with Bangalore City ACP Mr. Praveen Sood attended by a Praja team including me, expressed a view that it is the right turn that complicates the road traffic flow. This view of Mr. Sood sounds similar to that of the DCP of Pune.

A very active Praja in Pune is currently grappling with Banning Right Turns to Improve Traffic Flows proposal of its Deputy Commissioner of Police. The Pune author seems to be in confusion whether this move by the Pune DCP is scientific or other wise.

Any logical thinking conforming to known and proven scientific laws as of the day is scientific. Thus which is scientific to day could well be unscientific tomorrow, as the human knowledge improves by the day if not hours. Hence going by what we have discussed above, we have to consider logically the consequence of banning the Right Turn. The logic to be applied here is whether the gains achieved by banning the right turn are more than the losses due to the banning.

It looks like the Pune Praja is reconciled to the proposal of restricting the right turn made by DCP Pune.

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Wife & Me in Hyderabad, India August 18, 2005

Wife &  Me in Hyderabad, India August 18, 2005
The Indian School of Business