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Traffic finally flows across CBI Jn Magic Box
Written By Photoyogi - 29 October, 2008
Bangalore magic boxes Bellary Road Road Works Citizen Reports Transportation Infrastructure Flyovers and underpasses
Finally The CBI Jn seems to be open to public, Not sure if some lessons have been learnt... There is no tar on the road still! Its got this "super rubble" finish that tests out vehicle road fitness!!!
Or Probably BDA Jn flyover construction taught BBMP that any amount of compression using vibra-rollers are not as good as actual traffic! So now, as the traffic "rolls" over the junction and we already see certain areas showing resemblances to the Moon! Wonder why we should have the Chandrayan just come to CBI Jn! Please wait i will put up some more updates on this. PhotoYogi
COMMENTS
Having a one man show run bangalore is proving costly
mcadambi - 31 October, 2008 - 06:22
Right idea may be not right execution
idontspam - 30 October, 2008 - 10:40
blrsri - 29 October, 2008 - 06:46
asj - 29 October, 2008 - 12:11
asj - 30 October, 2008 - 13:42
As seen above, every few miles, the left lane on either side of the 3 + 3 lane highway becomes an exit and entry point and intervening brown section made part of hard shoulder. Now there is a problem here, the two sides on either side are divorced completely. Typically, the solution is to have flyover connect two sides. This is seen below on a section of M1 motorway in UK
Note the sat image showing the flyover connecting two sides (station road). Now this could well have been an underpass, but it would have remained completely delinked with the actual highway.
Instead, in India, what we are attempting now is to build flyovers after flyovers (now along with these magic boxes) at every junction we have allowed to crop up along the (so called) highway.
What may be the solution?
The solution is to create what I have in the first image above. To do this in the current circumstances is rather difficult, but ideally, this is what ought to be considered -
Create entry and exit points as shown above on either side with intervening portion (shown as brown) having only 2 lanes on the highway. This intervening portion will not have any junctions any more.
This will need repeating strategically along the highway and between each entry/exit junctions, the highway will become non-accecssible.
But what makes the magic boxes even more badly planned is the treatment given to the Bellary road at the junction with CV Ramana road and further downstream at when it meets the ORR.
With the above already in place what may be done other than magic boxes
Its amazing that with two decent free-flow systems in place on either side, the need to overcome junctions at Sanjaynagar and CBI junctions was / is attempted using Magic boxes rather than -
As seen above, all junctions between the two free-flow systems should be blocked off completely (red lines along the highway). And all traffic made to join the highway only via the free-flow systems on either side. This may be a slight detour, but on the highway the traffic moves without junctions. And as its the latter alone which can be done realistically, the objective is achieved without excess spending.
The only reason then for considering a magic box, is to let pedestrians across (and by making ramps rather than steps, it more or less becomes disabled friendly too). Ideally this question will not arise as technically highways should be devoid of all pedestrians, but the circumstances are such that urban growth has been allowed too close to the NH.
ASJ
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