I know what they meant but…

[Oceanrower]

this has to be the daftest road markings I’ve seen!

[ChocolateFrog]

Why?

[Oceanrower]

Normally for a low bridge there’ll be dotted lines either side showing the highest part. This look like it’s encouraging you to change to the opposite carriageway.

[kgkev]

the Streetview doesn't give the amount of visibility justice, it's a very quiet bit of road with all through traffic on the bypass.

I assume its best to guide high vehicles onto the wrong carriage rather than let them guess and risk a collision.
even so, someone has clear gone too far over and clipped the other side


Street View

If the road was any busier, or visibility limited I am sure they would put traffic signals in

[Canon_Fodder]

They obv want vehicles to go under the bridge in its middle (most clearance) but it seems a rather odd way of marking the road to encourage that as this way people may drive through at an angle which is not optimal

Better IMV to have a single dotted 'lane' going straight under the bridge in the middle of the road.

[BertBert]

It looks like the bridge isn't perpendicular to the road which is why the markings go from one side to the other following the highest part of the bridge.

[RB Will]

BertBert said:

It looks like the bridge isn't perpendicular to the road which is why the markings go from one side to the other following the highest part of the bridge.

This

[Canon_Fodder]

Ah ok - makes sense

[speedking31]

Might be interesting with Lane Keep Assist (LKAS) turned on. Or in an autonomous vehicle.

[DodgyGeezer]

presumably to help tall vehicles make the (fairly) sharp left hander just past the bridge...

[jondude]

It might be a deliberate attempt to confuse slightly so everyone slows down. Those lanes look barely wide enough for a motorbike and the sharp left turn ahead rather dangerous.

Am reminded when I took a friend from the US out for a drive on such roads and he seriously asked why I was driving on cycle paths. When he saw an oncoming car come at us, he nearly had a heart attack.

[playamonte]

Those dotted lines show the route for high vehicles & you can see in the picture that the tube (as that is what it is) is offset
So if I were driving a tall vehicle through there I would follow the indicated route and not simple stay in the middle of the road.

[GranpaB]

speedking31 said:

Might be interesting with Lane Keep Assist (LKAS) turned on. Or in an autonomous vehicle.

I don't think any lane assist systems work below 40mph or some such?

[e-honda]

The bridge is at an angle so the middle of it follows that path, but I think they could have lost 1 or 2 dashes at either end to make it look less like it was directing you to change to the other side of the road.

[Glosphil]

Perhaps ensuring the rear of a high & long vehicle clears the bridge before returning to the normal side of the oad.