Consider the following statements regarding Traffic Calming Measures 1. Speed Humps are raised areas in the roadway designed to reduce vehicle speeds. 2. Rumble Strips provide tactile and auditory warnings to drivers who are drifting out of their lane. 3. Roundabouts generally increase the number of high-speed right-angle collisions at intersections. Which of the statements given above are correct?
- A1 and 2 onlyCorrect
- B2 and 3 only
- C1 and 3 only
- D1, 2 and 3
Solution
Concept
Traffic Calming Measures
Formula
N/A
Step-by-step solution
1. Analyze statement 1: Speed humps slow down vehicles (True). 2. Analyze statement 2: Rumble strips alert drifting drivers via sound and vibration (True). 3. Analyze statement 3: Roundabouts reduce, rather than increase, right-angle collisions (False). 4. Select Option (a) (1 and 2 only) as the correct choice.
Explanation
Speed humps physically slow down traffic, and rumble strips alert drivers through sound and vibration when they drift from their lane, making both statements 1 and 2 correct. Statement 3 is incorrect because roundabouts actually reduce high-speed right-angle collisions by forcing traffic to slow down and travel in the same direction.
Shortcut
To remember Traffic Calming Measures and their safety impacts, use the rule "SRR - Slow, Sound, Safe": - Speed Humps: Slow down traffic (vertical deflection). - Rumble Strips: Sound & vibration alert drifting drivers. - Roundabouts: Reduce high-speed right-angle collisions by replacing sharp intersections with continuous, single-direction flow.
Common mistake
A common mistake is selecting option D by assuming statement 3 is correct. Students often confuse roundabouts with traditional intersections, failing to recognize that roundabouts actually eliminate high-speed right-angle (broadside) collisions by forcing vehicles to travel in the same direction at lower speeds. Another mistake is confusing rumble strips with vertical deflection measures like speed humps.
Correct answer: A) 1 and 2 only