CTC 440 - Homework 4 (Spiral Curves)

1.    Using the spiral curve computation sheet or downloading the spreadsheet sPIRAL cURVE wORKSHEET (credit to Justin Newbury fall 02) compute all the data required for a spiral curve assuming the following:

2-lane road
e_max=0.06
Design speed=60 mph
Delta=30 degrees
D_c=3 degrees
Station at the TS=12+00

2.    Solve problem one assuming the same data except that the roadway has 4 lanes instead of two.