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Undertaking or Going with the Traffic flow - graham sherlock
I was pulled over this morning on the A14 after travelling on the inside lane at a modest 60 mph miniding my own business, with the usual accelerate/brake queue in the outside lane. I was advised by the rather Mr Grumpy PC, who was in said lane, that I was committing an offence by undertaking the cars in the outside lane. I tried to point out that I was merely staying with the flow of traffice in my lane, but as he repeated again 'That I was committing an offence,' I decided that an apology for my behaviour was the better route rather then argue the toss.

With that he basically let me get on with my journey. The point is, if the outside came to a dead stop or slow down as they can and do, do I, on the inside lane, have to abide by his rule, and not 'undertake', and even come to a stop even though my lane ahead is clear. Common sense should be to carry on, unless there is an accident or other problem ahead.

The other thing was that was Mr Plod in just a ratty mood due to the fog/frost/traffic or even missing his morning doughnut?
Undertaking or Going with the Traffic flow - AlastairM
Yes, he was probably all these things. Not sure if that makes it more acceptable or not, did he stop all the cars in front of you? Or was it just you?
It cannot be helped that sometimes you find yourself overtaking(undertaking) the outside lane. It would not be helpful to try to do otherwise, a lorry into your boot itsn't a good way to start the day!
Undertaking or Going with the Traffic flow - audi dave
Highway Code Rule Number 268:

"Do not overtake on the left or move to a lane on your left to overtake. In congested conditions, where adjacent lanes of traffic are moving at similar speeds, traffic in left-hand lanes may sometimes be moving faster than traffic to the right. In these conditions you may keep up with the traffic in your lane even if this means passing traffic in the lane to your right. Do not weave in and out of lanes to overtake."

The key issue is the "congested conditions". I'd say 40mph or less. So at 60mph, no going down the inside. The other thing is not changing lanes to get an advantage in slow moving traffic.

The tailgating in lane 3 problem with lanes 2 and 3 empty is a good reason for introducing variable speed limits like the M25. Where they're used you don't get this problem.
Undertaking or Going with the Traffic flow - Dynamic Dave
www.direct.gov.uk/en/TravelAndTransport/Highwaycod...2

Rule 268.

Do not overtake on the left or move to a lane on your left to overtake. In congested conditions, where adjacent lanes of traffic are moving at similar speeds, traffic in left-hand lanes may sometimes be moving faster than traffic to the right. In these conditions you may keep up with the traffic in your lane even if this means passing traffic in the lane to your right. Do not weave in and out of lanes to overtake.

Print off and wave under the nose of the next traffic officer who pulls you over.
Undertaking or Going with the Traffic flow - Dynamic Dave
Beaten to it by milli-seconds by audi dave
Undertaking or Going with the Traffic flow - RichardW
As I have stated before there is no SPECIFIC offence of underataking. If there was, the HC would say "You MUST no overtake on the left" and back it up with a reference to the relevant law. The only offence that you might be committing is careless driving, but then the CPS would have to prove that your driving fell below the standard expected - which I doubt they'd bother with. If everybody just got on with it, life would be much easier!

Mr PC was having a bad day - if you get pulled again, ask exactly what offence he thinks you are committing! Hmm, no, I probably wouldn't either... :-))
Undertaking or Going with the Traffic flow - daveyjp
Hghway Code

268
Do not overtake on the left or move to a lane on your left to overtake. In congested conditions, where adjacent lanes of traffic are moving at similar speeds, traffic in left-hand lanes may sometimes be moving faster than traffic to the right. In these conditions you may keep up with the traffic in your lane even if this means passing traffic in the lane to your right. Do not weave in and out of lanes to overtake.

He may have had an issue with your speed though if you were doing 60 and the outside lane was doing a lot less.

Interesting how when motorways are congested signs advise you NOT to change lanes to keep traffic flowing!

Edited by daveyjp on 12/02/2008 at 13:51

Undertaking or Going with the Traffic flow - audi dave
>> Interesting how when motorways are congested signs advise you NOT to change lanes to keep
traffic flowing!


That's because the more lane changing that goes on, the more people have to slow down to make space and then accelerate again. The whole motorway then flows slower than it would if everyone kept going at constant speed.
Undertaking or Going with the Traffic flow - movilogo
Can someone please explain what's the problem with overtaking from left?
Undertaking or Going with the Traffic flow - runboy
What happened if, out of spite, someone in the lane to the right of you just braked and you went motoring past? Is that policeman going to pull you over and accuse you of undertaking?

What happens if the lane to the right of you is closed further up due to an accident which you did not know about or was not indicated on any roadside info boards - are you going to stop level with the queue in the lane to the right of you despite your lane being clear for miles?

Of course not.

Personally if the other lane was moving slower than me then I would probably drop my speed so that I'm not belting past at 70mph to their 40mph as you may (more likely will) get drivers pulling into the clear lane without looking.

Worrying when the police get it wrong.
Undertaking or Going with the Traffic flow - L'escargot
Worrying when the police get it wrong.


We don't know the exact circumstances. Perhaps there was more to it than is described in the original post.

Undertaking or Going with the Traffic flow - normd2
I was having a very satisfying undertaking session this morning doing around 25mph on the M90 which very nearly came to a sticky end when a Dutch registered artic in lane 2 decided he wanted the same bit of road I was using. THAT's one of the dangers of undertaking.
Undertaking or Going with the Traffic flow - Hamsafar
Keep a highway code in the glovebox, they are only £1.70 and you could have got it out if he got any more surly.
Undertaking or Going with the Traffic flow - Cliff Pope
It all seems to hang on the meaning of the word "congested". Has a court ever decided this? Is speed relevant to congestion, or does it refer only to traffic density? Or is it actual speed as a percentage of speed limit - eg 40 mph in a 70 area is congestion, but 25 in a 30 area is not?
Undertaking or Going with the Traffic flow - graham sherlock
OK, there was probably more going on. Mr Plod may well have seen me laughing at an article on Radio 4. Definitely not a chap to be trusted. Or it may have been that I ambled past him 3 times while he was up the chuff of the bloke in front. His stopping distance was a bit suss as I re-call.

Best policy was still to tug forelock, doff cap and get off my knees, offering a prayer to my god of caution as I drove off at a sensible speed.
Undertaking or Going with the Traffic flow - graham sherlock
A quick , 'oh, by the way', if I was on the motorbike, he would have definitely had a case. Not that I could possibly comment on that one. Yes, I am that Kawasaki in the warmer weather.
Undertaking or Going with the Traffic flow - normd2
Hamsafar, if there's one lesson i've learned it's this - don't try and be smart with a grumpy traffic cop. He's got the power to seriously mess with your day; you never know what he's just had to deal with so you've no idea why he's grumpy. In this sort of situation your aim is to get him to say 'ok sir, on your way and don't do it again' and you say 'thanks I won't' - quick and painless for both of you.
Undertaking or Going with the Traffic flow - commerdriver
Was the nice PC in a marked traffic car or panda car or what?

There is a very fine line between "going with the traffic flow" and serial undertaking rather than join the line of cars passing a lorry or whatever, especially on a 2 lane dual.

Maybe he wanted a break from the queue and you provided an excuse.
You obviously passed the most important test, the attitude one.

Edited by Webmaster on 13/02/2008 at 00:41

Undertaking or Going with the Traffic flow - Statistical outlier
My best mate?s girlfriend is a Crown prosecutor, and she actually looked into this for us after we asked her about it.

Apparently there is no hard and fast about what counts as congestion, or on what counts as undertaking. If the police pass the case to the Crown Prosecution Service, then they will make a judgment on a case-by-case basis as to whether they wish to prosecute.

In a brief informal survey of prosecutors in her office, apparently there was a consensus on two things that they would consider when deciding if they were going to prosecute.

1. What was the speed difference? Too great, and it smacks of overtaking rather than just going with the traffic flow.

2. Was there an active move left before passing the vehicle in front? If the overtaking vehicles simply continued in the lane it was already occupying, with a reasonable speed differential, then it was felt that it would be extremely unlikely that the driver would be prosecuted. If an active move left took place to get around the vehicle in front, it was universally felt that that driver should be prosecuted.

I know this isn't quite the scenario that the OP was asking about, but I thought it was quite interesting, and it has certainly illuminated how I treat undertaking.
Undertaking or Going with the Traffic flow - graham sherlock
1. After joining the traffic, it was a steady 60 on my part, didn't overtake once as there was no point or space. The outside was 70, with the plod in a normal Focus in police markings, so nothing sneaky there, though I was suprised at him being in the thick of it.

I just sat in the traffic on the inside listening to R4 & Geoff Boycott ranting. No change there then. Next thing flashy-flashy in my rear view and pulled into the next P-bay, where I did the 'umble servant routine. Also, it was far too cold to hang around.

Q. Did it pay to get out of the car to 'chat' to the PC face to face. I hate it when they pin you in the car?
Undertaking or Going with the Traffic flow - yorkiebar
Think you did the right thing of being sorry even though you werent (or appear not to have been) in the wrong. But you were not sure at the time anyway?

Not so sure I would have been sorry if it had been me though, I would like to know what offence I was comitting and how exactly.

But it went no further so you obvioulsy were not doing anything he could really have you for! Well done for avoiding more wrath.

What part of A14 out of interest? as I get to use this quite a bit, and see a lot of undertaking happening (obvious weaving in and out of traffic)
Undertaking or Going with the Traffic flow - AlastairM
Nice to see that it's not breaking the law that makes the difference, but whether your 'attitude' is 'ever so humble' enough.
Undertaking or Going with the Traffic flow - commerdriver
Nice to see that it's not breaking the law that makes the difference but whether
your 'attitude' is 'ever so humble' enough.

that's true for all sorts of things in life especially when it's not something serious, being polite usually gets you further than being aggressive in a one to one conversation

Edited by Webmaster on 13/02/2008 at 00:40

Undertaking or Going with the Traffic flow - Bromptonaut
Nice to see that it's not breaking the law that makes the difference but whether
your 'attitude' is 'ever so humble' enough.


There is, in cases like this, a significant grey area between completely law abiding and blatant flouting of the law. Those taking umbrage at being fingered tend to be the ones who are either trying to wing it or have something else to hide and are therefore chancing further inquiry. A willingness to accept advice will often save a lot of time and trouble.

Undertaking or Going with the Traffic flow - 2cents
Victim of bullying it seems to me. Law upset that they chose the wrong lane so thus take out their frustrations on the OP
Undertaking or Going with the Traffic flow - drbe
2 cents - you aren't hamsafar in another guise are you?

Perhaps the two of you could get together and form Conspiracy Theorists Inc. ;-}
Undertaking or Going with the Traffic flow - BobbyG
If Police were in a Focus then maybe they were a normal "beat cop" as opposed to traffic police, so may , therefore, not be as clued up with the rules?

But, as has been suggested many times before, police can stop you for all sorts of perceived reasons. Maybe they thought there was more to it but after speaking to you they were quite happy to let you go?
Undertaking or Going with the Traffic flow - graham sherlock
For Yorkiebar, it was east-bound joining at Stowmarket.

General consensus is that eating 'umble pie, and grovel gets you out of pickles like this. It's cheaper then £60 (or whatever the going rate is) and poss. points.

Thaks for the comments.
Undertaking or Going with the Traffic flow - 2cents
So in effect, plead guilty to something you didn't do so as to escape a harsher penalty ?

Is that how we want the law applied in the UK ?
Undertaking or Going with the Traffic flow - ForumNeedsModerating
So in effect, plead guilty to something you didn't do so as to escape a harsher penalty ? Is that how we want the law applied in the UK ?


No, not really. The OP simply used his noodle - the PC may have been wrong in the nicety of the law, but to make an issue would have, at the very least, delayed his journey more - if only for a 'details' check and/or producer. As has been pointed out by legal eagles here, the CPS wouldn't entertain pursuing for prosecution any but the most flagrant of undertakes.

There are battles worth fighting, but this encounter would only be contested by the awkward squad looking for a peg upon which to hang their sense of injustice or putative attack upon their human rights.
Undertaking or Going with the Traffic flow - jbif
the PC may have been wrong in the nicety of the law


No he wasn't. The rule quoted applies to Motorways. On A roads, overtaking on the left is allowed when moving slowly in queues.

60mph is not "moving slowly".

Edited by jbif on 13/02/2008 at 10:08

Undertaking or Going with the Traffic flow - ForumNeedsModerating

On A roads, overtaking on the left is allowed when moving slowly in queues.

No - you quoted the relevant paragraph only partially.


The rule for non-motroways is: (quoted in full from highway Code)

"Stay in your lane if traffic is moving slowly in queues. If the queue on your right is moving more slowly than you are, you may pass on the left"

The first sentence refers to changing lanes : "Stay in your lane if traffic is moving slowly in queues." (which, incidentally, applies to motorways also)

The second sentence refers to passing on the left, and makes no mention of absolute speed, just relative speed.

" If the queue on your right is moving more slowly than you are, you may pass on the left"






Undertaking or Going with the Traffic flow - jbif
woodbines:
The key word is "queue".

Undertaking or Going with the Traffic flow - ForumNeedsModerating
Yes jbif - but there's controversy about what a 'queue' is - if there's congestion - such as when the right hand lane is consistently slower than the left and/or traffic is more less in convoy in both lanes - then the 'it's ok to undertake' rules apply from my understanding. I would say the OP was in a queue, albeit a fast one - his ambient speed was that of those immediately in front & behind him.
Undertaking or Going with the Traffic flow - jbif
Yes jbif - but there's controversy about what a 'queue' is - if there's congestion -


I did not know there was any controversy about it. Where is it?
I think the accepted meaning of the word "queue" involves "waiting".
The official definition of traffic "congestion" can be found at
www.london.gov.uk/assembly/reports/transport/drivi...f

Undertaking or Going with the Traffic flow - pleiades
Rule 268 appears to refer to motorways - presumably the A14 isn't so what rule applies to A roads/dual carriageways?
Undertaking or Going with the Traffic flow - XantKing
I only ever undertake when folk are blatantly ambling along in the middle or outside lane when lanes to the left of them are clear, which is becoming almost the norm of the stretch of M8 I use most days. Folk seem almost to have a phobia about driving in the left hand lane. I'll hang about behind them for a bit and overtake if we're both in the middle lane, but if I'm in the left hand lane, then I don't see why I should have to veer across 3 lanes then back again to get past, strikes me as far more risky than undertaking.

Surely it's these hogs that should be getting the ticking off, not people who are undertaking to get past them?
Undertaking or Going with the Traffic flow - jbif
Rule 268 appears to refer to motorways - presumably the A14 isn't so what rule
applies to A roads/dual carriageways?


Good point. The relevant bit for other roads is section 163:
* only overtake on the left if the vehicle in front is signalling to turn right, and there is room to do so
* stay in your lane if traffic is moving slowly in queues. If the queue on your right is moving more slowly than you are, you may pass on the left

Seems to me to be more stricter than the motorway rule.

Undertaking or Going with the Traffic flow - Leif
Good point. The relevant bit for other roads is section 163:
* stay in your lane if traffic is moving slowly in queues. If the queue
on your right is moving more slowly than you are you may pass on the
left



There seems to be disagreement on the meaning of the above. IMO the second sentence is contingent on the first being true, i.e. you can only overtake on the left if the traffic is moving slowly in queues, and the queue on the right is moving more slowly than the queue on the left.

So it looks to me as if the copper was in accord with the Highway Code.

From a safety point of view there is a huge difference between a motorway and a non-motorway.

On a motorway, it is common to see lane 3 full of cars nose to tail, and lanes 1 and 2 near empty. There is no danger in undertaking in lane 1 as lane 2 protects you. Undertaking in lane 2 is riskier, but as long as lane 1 is clear at the time, the risk is low. Similarly when undertaking cars in lanes 2 and 3, the hard shoulder is the safety lane in case of a numpty, assuming it is clear of vehicles.

On a non motorway the risk is higher. There are only two lanes (assuming a dual carriageway) and usually there is no hard shoulder. So if you undertake, and numpty decides to move left, where do you go?
Undertaking or Going with the Traffic flow - GJD
Sounds like a grumpy plod. Did he explain why, in his opinion, you were likely to cause an accident? Or did he just seem concerned with whether you were committing an offence or not? Often in this situation, the right-hand lane displays what seems to me to be some quite sporting following distances. Was any of that going on? Did he pull them over too?

It's all good fun trying out one's ability to quote the letter of the law more perfectly than the last person in a bid to out-clever them, but the letter of the law is somewhat irrelevant when compared to dangerous/not dangerous distinction that the police on the roads should be there to help educate us on.
Undertaking or Going with the Traffic flow - graham sherlock
I didn't give him the chance to explain. Just held my hands up (figuratively speaking) & apologised. It doesn't take any normal human being long to ascertain that someone, plod or not, is not in the mood to have a moderate and reasonable debate on the rights & wrongs of a situation. He wasn't. The pointy finger was the real giveaway!

As to 60mph not being slow, I refer the honourable gentleman to the comment about an artic up your chuff. Don't forget, this A14 is the gateway to Felixstowe and there's lots of them about. I don't scare easily, but you don't really need to aggravate a situation by forcing an artic to overtake, especially in the conditions (frost, fog, rush-hour) for the sake of 4-5 mph. This part of the A14 is 2-lane for those that don't know.
Undertaking or Going with the Traffic flow - jbif
This part of the A14 is 2-lane for those that don't know.

Yes, I do know. The Highway code section 163 applies. Queuing traffic means traffic going very very slowly.
If you haven't learnt from this, you will deserve to get fined.
Undertaking or Going with the Traffic flow - 2cents
So to be absolutely safe, if you see the traffic in the right hand lane has ground to a halt, you're better off bringing your car to halt in the left hand lane, even if their is no traffic in front of you, just to make sure no one construes you as ' overtaking " ?
Undertaking or Going with the Traffic flow - jbif
So to be absolutely safe, if you see the traffic in the right hand lane has ground to a halt,


Which part of the Highway Code do you not understand?

Undertaking or Going with the Traffic flow - 2cents
I understand it but it would seem from what has been reported that the final decision lies with plod as to whether you are undertaking or not. So be on the safe side and stay abreast with the last car in the right hand lane queue.
Undertaking or Going with the Traffic flow - jbif
.. that the final decision lies with plod


Why do I get the impression that you are anti-Police? (eg. using Con for Constable?)
Undertaking or Going with the Traffic flow - 2cents
keeping my replies short and to the point, thats why.
Undertaking or Going with the Traffic flow - 2cents
And NO, I am not anti police but I am ANTI a system that puts blind faith in what a computer spews out.
Undertaking or Going with the Traffic flow - graham sherlock
Oh, perlease. Give me some credit. If the traffice was going very,very slowly, I do have the nous not to go past at what would be called a speed that would invite a fine, nor would I come to a complete stop. I would proceed with caution, m'lud.

Me, I support the plod/police/old bill and rail against the do-gooders (viz the Mosquito deterrent device that's moves young children/teenagers/yoof on where they congregate 'cos they're bored. Bless their little cotton socks. But that's veering of the subject)
Undertaking or Going with the Traffic flow - AF
Perhaps if the people followed Highway code rules 160, 163 and 264 i.e. keep left, then there wouldn't be a stream od traffic in lane 2 or 3 to 'undertake'.
Undertaking or Going with the Traffic flow - Westpig
the officer driving the police car will have noticed someone undertaking him and thought 'cheeky sod', i'm here in a marked police car and he's brazenly undertaking. Graham it would appear did not realise he was doing anything wrong, so didn't think not to do it.

There's a degree of discussion as to whether or not 60mph is within the spirit of queues and slow moving traffic. IMO it is not, although i understand the problems i.e. you're doing 60mph, then the outside lane is doing 50mph, what do you do, slow to 50 or keep going.

The real problem is the berk who goes up the middle lane at 60mph undertaking the outside lane doing their 50mph, then indicates right and pulls into the outside lane, so that everyone sat there is fuming because he's extracted the urine.

Myabe we ahould all undertake and overtake like they do in the States. I never have problems driving over there and suspect that our UK driving skills would have to improve if the mimsers didn't know what angle people would be coming from..i.e they'd be forced to be more aware (in the same fashion they wouldn't dare pull out without looking properly whilst on a de-restricted Autobahn, as there'd be two tons of Bavarias finest up their jacksy at warp factor 5).