Clothoid?
Posted: Mon Nov 04, 2019 8:46 pm
A central point for Advanced Driving
https://www.advanceddrivinghub.com/forum/
https://www.advanceddrivinghub.com/forum/viewtopic.php?f=2&t=944
TheInsanity1234 wrote:I noticed these bends seemed to catch a lot of people out, people frequently ran wide into the centre of the road at the midpoint of the s-bend going in either direction, and I realised that the reason is because on both entries, the road actually curves slightly to the left before the actual sharp left bend
Gareth wrote:Is this a bike thing? Although the linked article mentioned cars, it didn't seem to make the case that drivers were having this particular difficulty.
Gareth wrote:TheInsanity1234 wrote:I noticed these bends seemed to catch a lot of people out, people frequently ran wide into the centre of the road at the midpoint of the s-bend going in either direction, and I realised that the reason is because on both entries, the road actually curves slightly to the left before the actual sharp left bend
'Locals' knowing there isn't an unsighted entrance? Drivers trying to enter the bend at their highest comfortable speed instead of leaving something in reserve? A combination of too high an entry speed and a slightly tightening radius?
Tightening radius bends are reasonably common, so it's something that drivers ought to expect when they can't see how a bend develops. And, here, the bend is blind in both directions, which makes it impossible to see all the way through on approach.