4D. Special horizontal curves Flashcards
(e.g., compound/reverse curves, curve widening, coordination with vertical geometry)
1
Q
Which book and chapter can curve widening be found?
A
AASHTO Chapter 3.3.9.1
2
Q
For Turning Roadways, what is the difference between condition A,B, and C for design widths as found in Table 3-27?
A
AASHTO Chapter 3
Traffic Condition A may be assumed to have a small volume of trucks or only an occasional large truck;
Traffic Condition B, a moderate volume of trucks (e.g., in the range of 5 to 10 percent of the total traffic);
Traffic Condition C, more and larger trucks.
