Quote:
Originally Posted by junius
The example given a long time ago on this thread was from South Korea where a similar viaduct removal did not result in congestion elsewhere. It is counter-intuitive but the assumption from planners is that the car owners simply adjust either by re-routing, re-timing or not driving. Fair enough assumption when the opposite is the case which is that when congestion is solved by adding new roads they soon become congested as traffic expands to fill the availability.
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But this depends entirely on the situations and other variables.
Take this hypothetical:
You have a city that is running steady, constant and well. You might have traffic, but under normal conditions it is the same everyday. The situation is constant.
If you remove a major road, and the instantaneous result is that traffic is so bad on adjoining roads that people adapt by taking longer, less busy routes or by taking transit, thus increasing delays and travel times on those modes.
The end result is that thousands of people now take longer to travel. We are talking about an entire city worth of people losing between a few minutes (because of a full bus or busier than used to be traffic light) to an hour (going from a fast drive to slow bus) each. Even if you never used the missing road, your mode will be impacted by an influx of people using your road, cross roads, or your bus. Everywhere will be slower, not by a lot, just by a few minutes. Add that up it is hundreds of hours of lost time. Add to that the dollar and environmental cost of extra fuel burnt by people driving the "long way", more stop and go or by idling in traffic.
The micro view might be no big deal to some, a few minutes here and there, but to others it could be an hour a day or more lost. The macro view is very significant.
Think of what you want to do tonight when you get home, the chores or entertainment. Now when you get home sit still for an hour. That's what some real people will be losing, now multiply it by thousands. That's thousands of parents who will have less time to spend helping their kids with homework, or have less time to cook a healthy meal (so they stop for drive through) or less time to go for a run or play sports.
Losing the Viaduct might add another neighbourhood of condos, townhouses and trendy shops to the downtown for the elite to enjoy (we do need more sidewalks soiled with dog poop don't we?) but the cost is very measurable in the time stolen from the commuting working folk.
While losing the viaducts might not cost any individual more than 10 more minutes in a car (not like an hour losing a bridge would) as a whole, for even just 24,000 individuals, that's 4000 hours of lost time.
I don't see the trade. What do we, as a society in whole, gain from removing the Viaducts? How does it outweigh the loss?
Now I think the viaducts won't be around forever, but change takes time. Removing them to build some condos without other supporting infrastructure in place first for a growing region (explosive growth at times too) will harm us all for a quick buck. With out vastly expanded commuter rail into the valley (north and south of the river) and extended skytrain lines where we don't even picture them being today (Hastings).
Bringing driving time down to the level of transit won't work in switching people from cars to trains. You need to offer better train service first. For example, WCE from Mission is better than driving, until that is a reality EVERYWHERE what makes it right to make life worse, instead of better?