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City and Regional Planning QUESTION #4996
Question 1
In transportation capacity analysis, what is the theoretical maximum capacity (vehicles/hour) for one lane at 100 km/h with 2-second headway?
  • 1,000
  • 1,200
  • 1,500
  • 1,800✔️
Correct Answer Explanation
Capacity = $\frac{3600 \text{ seconds/hour}}{\text{headway in seconds}} = \frac{3600}{2} = 1800$ vehicles/hour/lane. This represents maximum theoretical throughput; practical capacity is typically 70-80% of theoretical due to speed variations and driver behavior.