3 ms·

In theory (but not always in practice) the steepness of the road accessing the underpass should be within the limits stated for the type of road (so - again in

by jaclaz 4y ago

In theory (but not always in practice) the steepness of the road accessing the underpass should be within the limits stated for the type of road (so - again in theory - not too steep). A good example of how NOT to design an underpass (very steep AND curve in the middle), this is Florence (Italy): https://www.google.it/maps/@43.7754979,11.2351912,3a,75y,53.75h,76.14t/data=!3m6!1e1!3m4!1s0r6y2c47jot1b-LU6HqqRA!2e0!7i16384!8i8192?hl=en-IT https://www.google.it/maps/@43.7754979,11.2351912,3a,75y,53.... But they did put on a sign to prevent pedestrians to access it, so the mugglers won't go hiding there ;).

anttiharju 4y ago
At first glance that underpass didn't seem that steep, but then I went to look for the underpass which I feel is super steep, I realized, maybe it's just difficult to get a good sense of the steepness from streetview. Here's one I've gone through and feel is a rather dangerous one: https://maps.app.goo.gl/pU36XG6J89QL2nqJA https://maps.app.goo.gl/pU36XG6J89QL2nqJA The view is from top of the underpass, but if you look to the back left you can see there's a downhill and then a really sharp 90° turn which might lead to really dangerous situations due to poor visibility and high speed.
- jaclaz 4y ago
  Yes, streetview does not convey the actual situation, in person it is steep (though I have seen steeper ones). That underpass is just after a bridge (over the river) so they couldn't make it less steep by making the ramp longer, but the cyclists (those that know the area) can turn on the right right before the ramp and use the "normal" roads/streets, someone that isn't already familiar with it is taken by surprise. This view from a bit further renders a little better the situation: https://www.google.it/maps/@43.7752485,11.2348264,3a,75y,22.62h,95.34t/data=!3m6!1e1!3m4!1smmRqgMTgxsNtmO1gmXLSFA!2e0!7i16384!8i8192?hl=en-IT https://www.google.it/maps/@43.7752485,11.2348264,3a,75y,22....

by jaclaz 4y ago

anttiharju 4y ago

At first glance that underpass didn't seem that steep, but then I went to look for the underpass which I feel is super steep, I realized, maybe it's just difficult to get a good sense of the steepness from streetview. Here's one I've gone through and feel is a rather dangerous one: https://maps.app.goo.gl/pU36XG6J89QL2nqJA https://maps.app.goo.gl/pU36XG6J89QL2nqJA The view is from top of the underpass, but if you look to the back left you can see there's a downhill and then a really sharp 90° turn which might lead to really dangerous situations due to poor visibility and high speed.

jaclaz 4y ago
Yes, streetview does not convey the actual situation, in person it is steep (though I have seen steeper ones). That underpass is just after a bridge (over the river) so they couldn't make it less steep by making the ramp longer, but the cyclists (those that know the area) can turn on the right right before the ramp and use the "normal" roads/streets, someone that isn't already familiar with it is taken by surprise. This view from a bit further renders a little better the situation: https://www.google.it/maps/@43.7752485,11.2348264,3a,75y,22.62h,95.34t/data=!3m6!1e1!3m4!1smmRqgMTgxsNtmO1gmXLSFA!2e0!7i16384!8i8192?hl=en-IT https://www.google.it/maps/@43.7752485,11.2348264,3a,75y,22....