Quote:
Originally Posted by ucsbgaucho
Agreed, it always seems like every govt infrastructure project only looks at current needs, and by the time it is actually completed, the current needs have already been exceeded. We see this with every freeway project (let's add ONE lane).
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What happens there is called Tripple Convergence. Doesn't matter how many lanes you add, there will always be traffic jams.
When there is traffic, three things happen:
1. People start traveling at different times of day
2. People start taking alternate routes
3. People start to take alternate modes of transportation
When you add lanes, those people who had changed their travel habits will go right back to using the freeway again, causing this triple convergence and congestion.
Additionally, during that short period of time when congestion has been alleviated, people are willing to move further and further out and commute in, accelerating suburban development, exacerbating the congestion further.
Widening freeways also further divides communities and pedestrian traffic.
You have to expand access for all three categories simultaneously.