2 ms·

"Congestion is a separate problem from road design" what ?? I will just say compare the space dedicated to cars between a random american city and Amsterdam, s

"Congestion is a separate problem from road design" what ?? I will just say compare the space dedicated to cars between a random american city and Amsterdam, so much space wasted and so much more infrastructure to maintain; and I believe emergency vehicule are still able to circulate (might even be faster with less cars ?).

civilitty 3y ago
> "Congestion is a separate problem from road design" what ?? Sorry that was poorly phrased. I mean that road design has to respond to congestion so that it's not a limiting factor to emergency service mobility. A low density suburb can afford to have a four lane road every mile with beautiful center dividers with plants whereas downtown needs four lane streets every block and they have to be completely flat to accommodate emergency vehicles moving into oncoming traffic lanes to get around congestion. City planning/permitting is (usually) supposed to prevent situations where congestion might become a problem as a matter of life and death. For example, a large housing development next to my house was recently forced to stop building after completing less than 20% of the planned units because they miscalculated worst case traffic flow. Wildfires are a concern and the fire marshal calculated that the roads feeding into the development would not be able to handle all the traffic from people evacuating and emergency vehicles coming in. > I will just say compare the space dedicated to cars between a random american city and Amsterdam, so much space wasted and so much more infrastructure to maintain; and I believe emergency vehicule are still able to circulate (might even be faster with less cars ?). The average American city has a third to a fifth the population density of Amsterdam, awful biking infrastructure, and little to no public transportation. The density and age of old world cities have so many side effects that I think it's impossible to meaningfully compare them with American cities. That said, don't read this as an endorsement of urban planning in the average American city. Here in SoCal even the suburbs are relatively dense and well designed (tons of parking lots notwithstanding) but I've seen some really awful examples like Salt Lake City where it seems every other street is a six lane megastroad.

civilitty 3y ago

> "Congestion is a separate problem from road design" what ?? Sorry that was poorly phrased. I mean that road design has to respond to congestion so that it's not a limiting factor to emergency service mobility. A low density suburb can afford to have a four lane road every mile with beautiful center dividers with plants whereas downtown needs four lane streets every block and they have to be completely flat to accommodate emergency vehicles moving into oncoming traffic lanes to get around congestion. City planning/permitting is (usually) supposed to prevent situations where congestion might become a problem as a matter of life and death. For example, a large housing development next to my house was recently forced to stop building after completing less than 20% of the planned units because they miscalculated worst case traffic flow. Wildfires are a concern and the fire marshal calculated that the roads feeding into the development would not be able to handle all the traffic from people evacuating and emergency vehicles coming in. > I will just say compare the space dedicated to cars between a random american city and Amsterdam, so much space wasted and so much more infrastructure to maintain; and I believe emergency vehicule are still able to circulate (might even be faster with less cars ?). The average American city has a third to a fifth the population density of Amsterdam, awful biking infrastructure, and little to no public transportation. The density and age of old world cities have so many side effects that I think it's impossible to meaningfully compare them with American cities. That said, don't read this as an endorsement of urban planning in the average American city. Here in SoCal even the suburbs are relatively dense and well designed (tons of parking lots notwithstanding) but I've seen some really awful examples like Salt Lake City where it seems every other street is a six lane megastroad.