What is the ratio of the steepest gradient permissible on a 3º Curve for broad gauge and meter gauge lines having a ruling gradient of 1 in 300?
1
1.14
2
1.3
3
0.87
4
1.21
What is the ratio of the steepest gradient permissible on a 3º Curve for broad gauge and meter gauge lines having a ruling gradient of 1 in 300?