super elevation

Question 1

why is there a mximum value for superelevation

Answer 1

stop cars from sipping on icy road when stopped
tall vehicles over turning
reduce intersection hazzard

Question 2

what two ways of finding horizontal curve characteristcs using surveying

Answer 2

setting out using EDM (electro magnetic measurement)

using offsets from first tangent

Question 3

what application of super elevation gives best drainage

Answer 3

rotation about inside edge

Question 4

when horizontal curve coencides with gradient >4% what application of super elevation should u use and why?

Answer 4

rotation on inside edge or centerline prefered because the outside edge gradient»centerline gradient