My nominated idiots of the day

[Eater Sundae]

If you reach the back of the queue and there was a shorter lane, you would obviously join it. Thus the 2 lanes would always be the same length.

 

---------- Post added 14-03-2016 at 08:00 ----------

 

 

At the point where the lane ends and merge in turn should apply, obviously.

 

Specifically create 2 lanes of traffic, so that you can subsequently reduce it to one?

 

Merge in turn is for slow moving traffic in queues. Are you now adding overtaking traffic to that?

[RootsBooster]

Specifically create 2 lanes of traffic, so that you can subsequently reduce it to one?

Use both lanes to reduce traffic backing up onto junction/roundabout/parkway.

 

Merge in turn is for slow moving traffic in queues. Are you now adding overtaking traffic to that?

No traffic is added, the same amount of traffic is evened out, that's all.

[Cyclone]

Specifically create 2 lanes of traffic, so that you can subsequently reduce it to one?

 

Merge in turn is for slow moving traffic in queues. Are you now adding overtaking traffic to that?

 

Yes, specifically use both lanes that already exist (we aren't creating 2 lanes, the tarmac and white lines are there) in order to keep the queue as short as possible to avoid the chance of it impacting on other junctions.

 

Merge in turn is not slow, it will have no impact at all on the actual cause of the queue which is the junction (roundabout) subsequent to the single lane section.

[RJRB]

And therein lies the different opinions and never the twain shall meet.

The 2 lanes exist to enable some overtaking when there is the opportunity to move over as instructed by the white arrows which first appear just before the 150 yard marker.

The single queue does impact back to the roundabout and onto the slip roads off the Parkway but very rarely any further.

"Merging" just before he hatching brings the traffic to a halt.

Thereafter traffic moves steadily straight down to the the roundabout which is not the cause of the stationery queue.

In practise this roundabout works well.

Fortunately,as previously stated no more than one in ten opt to go up the outside lane so it's not so bad.

[max]

And therein lies the different opinions and never the twain shall meet.

The 2 lanes exist to enable some overtaking when there is the opportunity to move over as instructed by the white arrows which first appear just before the 150 yard marker.

The single queue does impact back to the roundabout and onto the slip roads off the Parkway but very rarely any further.

"Merging" just before he hatching brings the traffic to a halt.

Thereafter traffic moves steadily straight down to the the roundabout which is not the cause of the stationery queue.

In practise this roundabout works well.

Fortunately,as previously stated no more than one in ten opt to go up the outside lane so it's not so bad.

 

As you quite rightly say, all these are your opinions.

[sgtkate]

And therein lies the different opinions and never the twain shall meet.

The 2 lanes exist to enable some overtaking when there is the opportunity to move over as instructed by the white arrows which first appear just before the 150 yard marker.

The single queue does impact back to the roundabout and onto the slip roads off the Parkway but very rarely any further.

"Merging" just before he hatching brings the traffic to a halt.

Thereafter traffic moves steadily straight down to the the roundabout which is not the cause of the stationery queue.

In practise this roundabout works well.

Fortunately,as previously stated no more than one in ten opt to go up the outside lane so it's not so bad.

 

The bottleneck on this road is the roundabout at either end. If this entire road was 2 lanes all the way rather than 2 lanes up the hills only then you would just move the queue from the merge point to the roundabout at Coisley Hill. So making a single lane queue achieves nothing for the speed of the journey from the Parkway to Coisley Hill roundabout but it does cause tailbacks onto the roundabout coming off the Parkway which then blocks traffic trying to go straight on towards Darnall causing a needless tailback for them.

 

So queue in both lanes, merge in turn and remove a blockage for other road users. In fact what should really happen but low and behold Sheffield Council doesn't seem to have grasped this concept yet, is that traffic coming out of Sheffield and towards Coisley Hill should get pushed into the right-hand lane going up the hill, leaving the left hand lane free for traffic coming off the Parkway. Then you'd end up with 2 naturally queuing lanes and no-one can get into a tissy about queue jumping.

[RootsBooster]

And therein lies the different opinions and never the twain shall meet.

The 2 lanes exist to enable some overtaking when there is the opportunity to move over as instructed by the white arrows which first appear just before the 150 yard marker.

The single queue does impact back to the roundabout and onto the slip roads off the Parkway but very rarely any further.

"Merging" just before he hatching brings the traffic to a halt.

Thereafter traffic moves steadily straight down to the the roundabout which is not the cause of the stationery queue.

In practise this roundabout works well.

Fortunately,as previously stated no more than one in ten opt to go up the outside lane so it's not so bad.

 

Is that what you think the white arrows are, an instruction to move over?

[Cyclone]

According to this

 

https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/491661/dg_191955.pdf

 

The arrows mean this

 

Arrow indicating the

direction in which to

pass hatched markings

and double white lines,

or the route that high

vehicles should take

under a low arch bridge

(may be reversed)

[RootsBooster]

According to this

 

https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/491661/dg_191955.pdf

 

The arrows mean this

 

...which makes sense, they're alongside double white lines at a point where the usage of that central section of carriageway begins to change over to oncoming, so there'll be more risk of an oncoming collision if anyone wanders over the lines there.

They're not an instruction to move over into the left lane.

[Eater Sundae]

According to this

 

https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/491661/dg_191955.pdf

 

The arrows mean this

 

The explanation appears to cover a very limited set of conditions. (EDit - and specifically does not seem to address two lanes into one). The arrows are seen in plenty of other situations.

 

On single carriageway roads which have alternating sections of continuous white line and dotted line (ie traffic in one direction can cross the central lines if safe, but those in the other direction cannot), eg, roads such as the Snake Pass. At the end of a section of being able to cross the central lines, it is usual to see these arrows to warn the driver that the lines will change and the driver needs to be back on the left hand side of the road before it changes. in that respect it is an instruction to move over. if you wait until you reach the point where the continuous white line is on your side, you have left it too late.

Edited March 15, 2016 by Eater Sundae