Read the following statements and identify the correct combination of statements.
Statement A: For constant value of lateral friction, the value of super elevation increases with increasing speed and with decreasing radius of the horizontal curve.
Statement B: According to IRC maximum superelevation for urban roads is 7%.
Statement C: The extra width (widening) of pavement on horizontal curves decreases with the increasing radius of horizontal curve.
Statement D: As per IRC, the extra width of single-lane pavement is 0.6 m for the radius of the horizontal curve more than 300 m.
1
(A)-False, (B)-True, (C)-False, (D)-True.
2
(A)-True, (B)-False, (C)-True, (D)-False.
3
(A)-False, (B)-False, (C)-True, (D)-True.
4
(A)-True, (B)-True, (C)-False, (D)-False.