The center-line of the inside lane of a roadway is on a horizontal curve with a 6o54'29" degree of curvature. The central angle of the curve is 40o. There are 6-foot-high snow banks 15 feet from the center-line of the inside lane. The inside lane has no grade and has a posted speed limit of 55 mph. Assume a vehicle is traveling at the posted speed and that the perception-reaction time for the driver is 1.5 seconds. Knowing that there is snow and ice on the roadway, what maximum superelevation rate would you recommend be used for the inside lane? Enter your answer accurate to 2 significant figures.
The center-line of the inside lane of a roadway is on a horizontal curve with a 6o54'29" degree of curvature. The central angle of the curve is 40o. There are 6-foot-high snow banks 15 feet from the center-line of the inside lane. The inside lane has no grade and has a posted speed limit of 55 mph. Assume a vehicle is traveling at the posted speed and that the perception-reaction time for the driver is 1.5 seconds. Knowing that there is snow and ice on the roadway, what maximum superelevation rate would you recommend be used for the inside lane? Enter your answer accurate to 2 significant figures.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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The center-line of the inside lane of a roadway is on a horizontal curve with a 6o54'29" degree of curvature. The central angle of the curve is 40o. There are 6-foot-high snow banks 15 feet from the center-line of the inside lane. The inside lane has no grade and has a posted speed limit of 55 mph. Assume a vehicle is traveling at the posted speed and that the perception-reaction time for the driver is 1.5 seconds.
Knowing that there is snow and ice on the roadway, what maximum superelevation rate would you recommend be used for the inside lane? Enter your answer accurate to 2 significant figures.
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