A driver is traveling at 30 mph on a level road. A broke-down UPS truck is unexpectedly spotted on the road ahead, blocking the road. The driver cannot swerve out of the way but the driver is able to come to a stop just before hitting the truck. Assume AASHTO standards for both reaction time and for f Determine PIEV distance+braking distance (i. e. determine the SSD) 5. Calculate the SSD based on AASHTO standards for 20, 30,40, 50, 60, and 70 MPH, on level grade A heavy truck with a weight horsepower ratio of 300 bhp has an initial speed of 55 mph on a 0% grade. After completing first a 2% climb of unknown distance, then a 3% climb fr 2000 feet, the truck is traveling at 30 mph. Find the distance of the 2% grade. 6,