coupleof questions i got from a cow-workers study course
1.In determining road - user characteristics for design purposes, the value most commonly used is:
A. Mean
B. Median
C. 85th percentile
D. 95 th percentile
2. According to AASHTO, a low speed rural collector road should be provided a minimum of _______ clear zone?
A. 5 ft
B. 10 ft
C. 20 ft
D. 40 ft
4. What measure will typically provide the greatest benefit cost ration in terms of improved safety at Highway RR grade crossings?
A. Flashing Lights replacing signs only
B. installing a grade seperation (bridge)
C. Automatic Gates replacing signs only
D. Automatic gates replacing active devices such as flashing lights
5. Assume a 60 second cycle length and a desired speed of 30 mph. What is the ideal spacing between signals for a 2 -way progression?
A. 440 ft
B. 880 ft
C. 1320 ft
D. 2640 ft
6. All of the following are different ways an accident experience can be summarized. What normally is the least significant in analyzing a hazardous intersection?
A. Type of Crash
B. Age of Vehicle
C. Severity of Injuries
D. Time of Day
1.In determining road - user characteristics for design purposes, the value most commonly used is:
A. Mean
B. Median
C. 85th percentile
D. 95 th percentile
2. According to AASHTO, a low speed rural collector road should be provided a minimum of _______ clear zone?
A. 5 ft
B. 10 ft
C. 20 ft
D. 40 ft
4. What measure will typically provide the greatest benefit cost ration in terms of improved safety at Highway RR grade crossings?
A. Flashing Lights replacing signs only
B. installing a grade seperation (bridge)
C. Automatic Gates replacing signs only
D. Automatic gates replacing active devices such as flashing lights
5. Assume a 60 second cycle length and a desired speed of 30 mph. What is the ideal spacing between signals for a 2 -way progression?
A. 440 ft
B. 880 ft
C. 1320 ft
D. 2640 ft
6. All of the following are different ways an accident experience can be summarized. What normally is the least significant in analyzing a hazardous intersection?
A. Type of Crash
B. Age of Vehicle
C. Severity of Injuries
D. Time of Day