A two lane, one-way road with radius of 50 m is predominantly carrying lorries with wheelbase of 5 m. The speed of lorries is restricted to be between 60 kmph and 80 kmph. The mechanical widening and psychological widening required at 60 kmph are designated as Wme,60 and Wps,60 , respectively. The mechanical widening and psychological widening required at 80 kmph are designated as Wme,80 and Wps,80 , respectively. The correct values of Wme ,60 , Wps ,60, Wme ,80 ,Wps ,80 , respectively are
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