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Road widening doesnt always help!
Written By blrsri - 16 February, 2008
There was this article on the web about research done on traffic congestion. It opens up a new perspective about transport.. "..more road capacity will not by itself substantially reduce congestion. Urbanist Anthony Downs once famously stated that travel demand on freeways rises to meet capacity. If new lanes are added, congestion problems might be lessened in the short run. But that reduced congestion will attract drivers who previously used other routes, traveled at different times of the day, used other modes, or drove less or not at all. New roads and lanes do provide additional mobility and other transportation benefits, but increased road capacity provides less congestion relief than one might expect. " http://planningresearch.blogspot.com/2006/07/los-angeles-traffic.html But in this context we need to be aware that the roads in Bangalore are grossly inadequate by any standards.. but the takeaway from this is the part of alternate/public modes of transport in de-congesting roads..
COMMENTS

christopher - 19 February, 2008 - 03:13



christopher - 19 February, 2008 - 16:49

tsubba - 18 February, 2008 - 13:34
here is some proof by example that 'you cannot widen your way out of congestion'.

jakarta

seoul

beunos aires
Most cities in the US have a stagerring 30-60% of the city area dedicated to roads and parking and they still have congestion.
All cities have a certain level of congestion irrespective of the level of public transport in the city. different cities have played with different percentages of pub trans infra to priv trans infra to achieve that level of acceptable congestion. boston is slightly road heavy, nyc is metro heavy. but congestion levels are more or less similar. but it must also be said that cities like los angeles, atlanta and houston that are very road heavy have higher than average congestion levels. a respectable level of pub trans is needed to be near the averages.
but irrespective of the level of pub trans, a certain minimum level of road infra is needed for blr. what that is has to be directly addressed rather than all these circuitous debates on trees & pedestrians. if tree lined roads are bangalore's heritage then get very serious about it. acquire land for trees.
see either way we are spending money - directly or indirectly(burning petrol in jams). might as well do it, directly. my dream is 3x3 signal free roads, with half lane markings(to regulate autos and bikes) along all the arteries + orr + icrr with footpaths, magic underpasses for street crossing, bus bays and trees on the median. fix the minimum design standards and repeat them on all the above mentioned roads.
we can curse our autos, bikes, cycles and our heterogenous modes till the buses come home but it is also true that there is no city of the size of bangalore that does not have congestion, irrespective of what model the city has adopted or how homogenous the city's traffic is. theories based on nice and convenient fluid dynamics is fine, but our reality is completely different from those theoretical models and we need practical solutions to help palike engineers not ammo for inteligencia to diss hapless auto drivers, bikers, cyclists and walkers.
thanks
tarle
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