What are superelevation and the rate of superelevation?Denfinition:Circular curves should be superelevation (straight cross sectin falls to inside) to counteract of centrifugal force Length required to accomplish a full superelevation (from a normal crown cross section to a maximum superelevated cross section) is known as the superelevatiomn runoffRate of elevation

1. 16,.. Please present the methodology to calculate the critical minimum radius of horizontal curve (with maximum rate of superelevation)? Figure to illustrate is required.