Which routing principle uses road space or time blocks to prevent congestion?

• A. Route balance
• B. Separation
• C. Prioritize
• D. Distribution

Answer: (B)

Separating traffic by space or by time creates dedicated lanes or time slots so conflicting movements don’t compete on the same road. This reduces interference, prevents bottlenecks, and keeps the overall flow steadier, which is exactly how using road space or time blocks helps prevent congestion. By designating a bus lane or a peak/off-peak window, you keep certain flows apart and thus avoid the jams that happen when different streams fight for the same road space. Other ideas aim to spread load or change the order of service, but they don’t inherently establish that clear separation of flows that prevents contention and gridlock.