4 ms·
In the mid-90s, Seattle started excavating its bus-stops-on-a-slope and pouring a new concrete foundation, because the busses were warping the asphalt so badly.
by PaulDavisThe1st 2y ago
In the mid-90s, Seattle started excavating its bus-stops-on-a-slope and pouring a new concrete foundation, because the busses were warping the asphalt so badly.
I was just back there this last weekend, and you can no longer see any of the concrete - it has all been coated with asphalt. However, I assume its a rather thin layer because none of the bus stops I checked show the signs of damage that were becoming common in 90-96.
- wombatpm 2y agoThey opened a new truck stop near me with asphalt roads. 6 months later they tore it up for concrete because the asphalt shifted into lumps where the trucks were turning cono
- teh_klev 2y agoI did google "bus-stops-on-a-slope", but nothing jumped out. What are "bus-stops-on-a-slope"?
- ender341341 2y agoI think they meant that the bus stop is on a hill maybe?
- stonemetal12 2y agoAsphalt, like glass, is an amorphous solid. When a heavy truck sits still on asphalt, asphalt will flow out from under the tires. Not only do you get a depression and eventually a pot hole where the tire was, and you get a little hill next to it. You just about need an offroad vehicle to avoid hitting the street.
- PaulDavisThe1st 2y agoMoreover, when a heavy vehicle like a loaded passenger bus has to accelerate from stationary on a hill, it exerts incredible force on the asphalt below it.
- asdff 2y agoDoesn’t just happen on hills you can see this phenomenom on flat intersections too that have seen a lot of nearby construction vehicles (cement trucks, dump trucks, etc are probably the worst).