Question: ( b ) Compute the additional cost of constructing a bridge which drivers can use safely when travelling at 1 2 0 km / h

(b) Compute the additional cost of constructing a bridge which
drivers can use safely when travelling at 120km/h on the same
curve radius. Assume the length of road carried by the bridge is
180 metres (see Figure Q.6) in both cases and the cost of the
bridge is 1,000 per m2 of bridge deck

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