We always think that adding a new road will ease traffic congestion . On the contrary, it may create a traffic jam . Let us see this paradox in detail. Look at the above diagram carefully . There are two roads to go from start to end . One via A and another via B. First road has a narrow bridge between ‘start’ and A . T he second road has narrow bridge between B and 'End'. The time taken to cross the narrow bridge depends on number of vehicle s . M ore cars mean more tim e . The time taken to cross the bridge is given by N/100, where N is the number of vehicles crossing the bridg e . H ence, the time taken to go from "start to A or B to end" is N/100 because of bridges. The time taken to go from A...
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