Thursday, July 24, 2025

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Bus Bunching Causes Delays and Crowding on City Routes

How traffic delays cause buses to cluster together on routes

From Hacker News Original Article Hacker News Discussion

Bus bunching occurs when delays cause buses on the same route to cluster together, resulting in uneven wait times and crowded buses. This phenomenon arises because a delayed bus picks up more passengers, further increasing its delay, while the following bus encounters fewer passengers and speeds up.

Why it matters: Bus bunching disrupts schedules, causing passenger frustration and inefficient transit service.

The big picture: Traditional scheduling often fails; solutions include dynamic delays, skipping stops, or removing fixed schedules to maintain spacing.

The stakes: Adding more buses doesn't solve bunching; traffic congestion and stop delays are the core issues needing targeted solutions.

Commenters say: Many emphasize that bus-only lanes are the most effective fix, while others caution against skipping stops or dropping schedules due to reliability concerns.