0.4% 0.6% 1.0% 0.8%
Answer Discuss in Comment
2.5 mm penetration only 7.5 mm penetration only 5.0 mm penetration only both 2.5 mm and 5.0 mm penetrations
to decrease it on descending grades and to increase it on ascending grades to decrease it on both descending and ascending grades to increase it on descending grades and to decrease it on ascending grades to increase it on both descending and ascending grades
1 in 30 1 in 48 1 in 36 1 in 60
accident data spot speed data traffic volume data origin and destination data
reduces right angled and rear end collisions reduces rear end collisions but may increase right angled collisions reduces right angled collisions but may increase rear end collisions increases right angled and rear end collisions
turbine circular tangent elliptical
equal radii and equal widths of pavement equal pavement widths but radius is more at entrance curve than at exit curve equal radii but pavement width is more at entrance than at exit curve different radii and different widths of pavement
turbine elliptical circular tangent
90° angle parking 30° angle parking parallel parking 45° angle parking
"Scientists dream about doing great things. Engineers do them."
