Ernest Marsh wrote:
OK. Where would you merge here - at the first arrow (just in front of the oncoming Zafira) or at the second arrow (alongside the vehicle with it's lights on) or would you wait until the lane runs out at the brow of the hill, keep two wheels on the double whites while you finish passing the last car you can without hitting anything coming the other way, irrespective of whether they would let you in or not - after all, they cannot let you in if you are along side - only once you get in front.
Note the lack of a bend warning on the left side by the telegraph pole - it's flattened where some clown ran it down in November!
That doesn't seem a severe bend, or does it tighten up at the brow, where there are two signs visible against the skyline?
As to where to merge - it depends. There are infinite combinations of traffic and other conditions that would influence my judgement, so it's difficult to make generalisations. However, in general, the principle of using the available space applies.
If (as shown in your photo) the road is clear ahead, there's nothing wrong in continuing an overtake in lane 2 up to the point where the hatched section starts. In fact the line marking the hatched area is broken so it is permitted to use that space as well, although it is better avoided. I would agree that it is wrong and aggressive to race up the hill in L2 then brake heavily just before the hatched area, then barge into a small gap (although the gap should not be small).
However, if there was a slow vehicle in L1 (say a bus or caravan) and the road ahead was clear, it would be reasonable to use the hatched space if it can be done non-aggressively (i.e. without cutting in on the last overtakee and without terrifying oncoming traffic).
If there is a steady flow of traffic at the 30-40 mph you describe, it is necessary to plan the return to L1. So I would be looking ahead for a reasonable gap to return to as soon as I became aware of the restriction. This is where space becomes important in both lanes. I want adequate space to the car ahead of me in L2 in case he does something unexpected or runs into difficulty with his own merge. I also need space to merge into. Hopefully, traffic in L1 is not so badly spaced that I cannot merge easily. At some point, I have to adjust my speed to the flow of traffic in L1 so the speed differential should not be so great as to make that difficult to achieve, ideally without braking (the incline helps here).
Quote:
Does the car coming up from the back, then rejoining the remaining lane at the front reduce the length of the line of vehicles back along the road?
Not when the cars in lane one have to slow even further to allow the outside vehicle to rejoin. Use of the outside lane merely fills it temporarily until they have to rejoin.
ONLY the continued flow of traffic through the pinch point SMOOTHLY will reduce congestion, and this is acheived by merging politely in good time.
NOT to do so, is akin to overtaking a line of traffic when there is an oncoming vehicle, and refusing to consider even attempting to pull in until they are about to collide with the oncoming vehicle.
NOW is everyone clear why I described this behaviour as "barging in", and not as merging?
I'm not sure if you're saying that drivers should not use L2 at all. Sorry, but I disagree. There is nothing wrong with overtaking a slower vehicle if it is safe to do so.
You may feel there is no point because there is little to be gained and choose to stay in L1 but you can't expect everyone else to share your opinion. You
may have local knowledge which an overtaker doesn't have. If a second lane is provided, it's wasted if not used. It's like saying there is no point overtaking a slower vehicle on a s/c road because there will be another slower vehicle somewhere ahead.
As for the barging in, it wouldn't be barging in if traffic in L1 was well spaced as it should be; although it's also true that the overtaker should not be trying to merge into a gap that doesn't exist and should have a fallback plan in case a gap which he had identified closes up. However, if a driver in L1 deliberately closes up a gap to stop someone who's overtaking from merging back in, what's the difference between that and doing the same on a s/c when someone's overtaking. It's dangerous driving.
I can see that there may often be traffic conditions that mean the advantage from overtaking is limited, but I would not choose to stop someone else from trying nor make it harder for them to do so. If I had chosen to stay in L1, I would be leaving a generous gap ahead so that someone else who is trying to press on can do so more easily.
Finally, if the volume of traffic is such that speed at the constriction has reduced to walking pace, it is absolutely necessary to use all the space in L2 up to the hatched area - merging early exacerbates the problem behind, with unknowable side effects.