Rolling car

Commuting, Day rides, Audax, Incidents, etc.
User avatar
meic
Posts: 19355
Joined: 1 Feb 2007, 9:37pm
Location: Caerfyrddin (Carmarthen)

Re: Rolling car

Post by meic »

Cyril Haearn wrote:Maybe vehicles could be equipped with chocks to put behind the wheels :?

I understand some modern vehicles do have a device to stop them slipping back

Is it too much to expect people driving in a hilly city to use the handbrake?
Stupid question, yes that would be too much to expect :(

Not sure if using the handbrake is even taught to new drivers now


Possibly the driver had no controls for the handbrake. I once drove a Renault with a fully automatic handbrake and I could not prevent it from rolling back on starting (it was on a serious slope). It was a matter of getting your foot from footbrake to accelerator as quickly as possible because it released the handbrake before you had got the load on the engine.
Yma o Hyd
Vorpal
Moderator
Posts: 20718
Joined: 19 Jan 2009, 3:34pm
Location: Not there ;)

Re: Rolling car

Post by Vorpal »

There is a trick to letting the clutch out just enough to 'hold' a car on the slope, then transferring the foot from brake to accelerator.

It's not especially good for the clutch, but it prevents roll back.

Of course, younger drivers mostly won't know this, because it's not in the cirriculum at driving schools.
“In some ways, it is easier to be a dissident, for then one is without responsibility.”
― Nelson Mandela, Long Walk to Freedom
User avatar
NATURAL ANKLING
Posts: 13780
Joined: 24 Oct 2012, 10:43pm
Location: English Riviera

Re: Rolling car

Post by NATURAL ANKLING »

Hi,
Just look at brake lights on cars when stopped at traffic lights.................
NA Thinks Just End 2 End Return + Bivvy - Some day Soon I hope
You'll Still Find Me At The Top Of A Hill
Please forgive the poor Grammar I blame it on my mobile and phat thinkers.
User avatar
mjr
Posts: 20336
Joined: 20 Jun 2011, 7:06pm
Location: Norfolk or Somerset, mostly
Contact:

Re: Rolling car

Post by mjr »

[XAP]Bob wrote:
mjr wrote:
[XAP]Bob wrote:The A road might be, the side road - not so much

The OP is travelling along the main road, so I don't understand why low traffic levels on the side road mean you wouldn't use the substandard route.


It was response to this:
The shared-use path was upgraded a couple of years ago and the council announced that they had no intention of making any sort of changes to priorities, as that might hold up the traffic...

OK, but why does low traffic levels matter to that either?

And you did follow "It's not as if the road looks like a major bottleneck for local traffic" immediately with "The farcility is not one I'd be using..." so hopefully you can see why I thought that you wouldn't be using it because there's low traffic on the side road.
MJR, mostly pedalling 3-speed roadsters. KL+West Norfolk BUG incl social easy rides http://www.klwnbug.co.uk
All the above is CC-By-SA and no other implied copyright license to Cycle magazine.
User avatar
Mick F
Spambuster
Posts: 56367
Joined: 7 Jan 2007, 11:24am
Location: Tamar Valley, Cornwall

Re: Rolling car

Post by Mick F »

NATURAL ANKLING wrote:Hi,
Just look at brake lights on cars when stopped at traffic lights.................
That is my hobby horse! :shock:

Read the HC Rule 114
https://www.highwaycodeuk.co.uk/lightin ... ments.html
Mick F. Cornwall
Cyril Haearn
Posts: 15215
Joined: 30 Nov 2013, 11:26am

Re: Rolling car

Post by Cyril Haearn »

Mick F wrote:
NATURAL ANKLING wrote:Hi,
Just look at brake lights on cars when stopped at traffic lights.................
That is my hobby horse! :shock:

Read the HC Rule 114
https://www.highwaycodeuk.co.uk/lightin ... ments.html

Sorry Mick
"should", not "must" :(
Entertainer, juvenile, curmudgeon, PoB, 30120
Cycling-of course, but it is far better on a Gillott
We love safety cameras, we hate bullies
AlaninWales
Posts: 1626
Joined: 26 Oct 2012, 1:47pm

Re: Rolling car

Post by AlaninWales »

Mick F wrote:
NATURAL ANKLING wrote:Hi,
Just look at brake lights on cars when stopped at traffic lights.................
That is my hobby horse! :shock:

Read the HC Rule 114
https://www.highwaycodeuk.co.uk/lightin ... ments.html

Apparently on some automatics, the stop-start technology will restart the engine if the driver takes their foot off the brake pedal :roll: - choice of either running the engine with brake lights off or dazzling the driver behind to keep the engine stopped whilst waiting :( .
User avatar
meic
Posts: 19355
Joined: 1 Feb 2007, 9:37pm
Location: Caerfyrddin (Carmarthen)

Re: Rolling car

Post by meic »

Vorpal wrote:There is a trick to letting the clutch out just enough to 'hold' a car on the slope, then transferring the foot from brake to accelerator.

It's not especially good for the clutch, but it prevents roll back.

Of course, younger drivers mostly won't know this, because it's not in the cirriculum at driving schools.


How much engine power will the ECU supply to stop it stalling?
For somebody like myself who always uses the handbrake, it was a dilemma trying to set off on this thing from the steep drive (with a garage door behind). I know that the owner hit the door a few times at first and also hated the automatic handbrake.
Yma o Hyd
User avatar
[XAP]Bob
Posts: 19801
Joined: 26 Sep 2008, 4:12pm

Re: Rolling car

Post by [XAP]Bob »

mjr wrote:
[XAP]Bob wrote:
mjr wrote:The OP is travelling along the main road, so I don't understand why low traffic levels on the side road mean you wouldn't use the substandard route.


It was response to this:
The shared-use path was upgraded a couple of years ago and the council announced that they had no intention of making any sort of changes to priorities, as that might hold up the traffic...

OK, but why does low traffic levels matter to that either?

And you did follow "It's not as if the road looks like a major bottleneck for local traffic" immediately with "The farcility is not one I'd be using..." so hopefully you can see why I thought that you wouldn't be using it because there's low traffic on the side road.



Because holding up traffic on a low traffic road at a junction with a high traffic road is a no-op, it's already held up by the traffic on the high traffic road.

And no - I can't see why you didn't just follow my teleporting train of thought... :lol: :P :roll:
A shortcut has to be a challenge, otherwise it would just be the way. No situation is so dire that panic cannot make it worse.
There are two kinds of people in this world: those can extrapolate from incomplete data.
Vorpal
Moderator
Posts: 20718
Joined: 19 Jan 2009, 3:34pm
Location: Not there ;)

Re: Rolling car

Post by Vorpal »

meic wrote:How much engine power will the ECU supply to stop it stalling?
For somebody like myself who always uses the handbrake, it was a dilemma trying to set off on this thing from the steep drive (with a garage door behind). I know that the owner hit the door a few times at first and also hated the automatic handbrake.


The idea is to let the clutch out to the point just before the engine stalls. I imagine it would be possible to find a hill steep enough that this wouldn't work, but I've done it on some pretty steep hills.

I'm not sure how an ECU will respond to the combination of brake and clutch release, and I haven't tried it with any cars built in the last 5 years, either, however, they must have considered that someone might do this.

It was something I practised a bit to get the hang of; when I was a kid we had a farm truck on which the hand brake had probably not functioned since sometime in the 1960s. :shock:

Using the handbrake is not a thing in the USA. When I learned to drive, no one ever told me to put the hand brake on at lights. Most people there call it a 'parking brake' because that's basically what it is on automatics. I had to learn to use a hand brake (properly :wink: ) to get a British driving licence.
“In some ways, it is easier to be a dissident, for then one is without responsibility.”
― Nelson Mandela, Long Walk to Freedom
Cyril Haearn
Posts: 15215
Joined: 30 Nov 2013, 11:26am

Re: Rolling car

Post by Cyril Haearn »

AlaninWales wrote:
Mick F wrote:
NATURAL ANKLING wrote:Hi,
Just look at brake lights on cars when stopped at traffic lights.................
That is my hobby horse! :shock:

Read the HC Rule 114
https://www.highwaycodeuk.co.uk/lightin ... ments.html

Apparently on some automatics, the stop-start technology will restart the engine if the driver takes their foot off the brake pedal :roll: - choice of either running the engine with brake lights off or dazzling the driver behind to keep the engine stopped whilst waiting :( .

One could just switch off the engine
Entertainer, juvenile, curmudgeon, PoB, 30120
Cycling-of course, but it is far better on a Gillott
We love safety cameras, we hate bullies
brooksby
Posts: 495
Joined: 21 Aug 2014, 9:02am
Location: Bristol

Re: Rolling car

Post by brooksby »

Some background, for non-locals:

The main road - A369 - is, as mjr pointed out, the main road for people coming from Portishead and surrounds into Bristol. Its not a big road, but during 'rush hour' its pretty much nose to tail (or, vehicles travelling a couple of car lengths apart at 50 mph), so its not exactly a friendly environment to cycle on. I use the shared-use path along the side, going toward Bristol. I used to stay on the road coming back (its more downhill), but have gradually lost my nerve, and got sick of people shouting at me during the summer, to get back on the [removed]-ing cycle path.

The side road just goes out into the countryside/lanes, getting smaller and smaller. Its not a convenient through road, so clearly the woman in the car lives down there somewhere. Which makes her a local, which means she knows that the pavement there is a cycle route. The side road rises up toward the main road, hence why (I imagine) she was having issues with the car rolling away.

The whole episode ticked me off, honestly, and the more because she somehow thought that she'd taught me a lesson about leaving sufficient space when passing behind 'stationary' cars. The fact that she appeared not to be in sufficient control of her vehicle even when it was 'stationary' seemed to pass right over her head, as did the necessity to look both ways. I wonder if she'd have set off on such a rant if her car had rolled back into a kid on a scooter, or a pushchair?
User avatar
mjr
Posts: 20336
Joined: 20 Jun 2011, 7:06pm
Location: Norfolk or Somerset, mostly
Contact:

Re: Rolling car

Post by mjr »

brooksby wrote:I used to stay on the road coming back (its more downhill), but have gradually lost my nerve, and got sick of people shouting at me during the summer, to get back on the [removed]-ing cycle path.

I know what you mean about getting sick of it, but I used to get that on the nearby A370 and there's no [removed]-ing cycle path on it. I didn't ride the A369 enough to suffer it there - only for occasional Business West events at Abbots Leigh.

It's depressing and there's a complete leadership vacuum at North Somerset Council about transport - they seem very much reactive rather than proactive.
MJR, mostly pedalling 3-speed roadsters. KL+West Norfolk BUG incl social easy rides http://www.klwnbug.co.uk
All the above is CC-By-SA and no other implied copyright license to Cycle magazine.
thirdcrank
Posts: 36780
Joined: 9 Jan 2007, 2:44pm

Re: Rolling car

Post by thirdcrank »

Surely, nobody is suggesting that riding the clutch is good driving? Apart from anything else, there's a real risk of the vehicle running backwards, just as happened here.
Cyril Haearn
Posts: 15215
Joined: 30 Nov 2013, 11:26am

Re: Rolling car

Post by Cyril Haearn »

Vehicles could/should be fitted with an automatic parking brake that applies as soon as one stops. Plenty of motons are afraid of starting, they crawl forward at the lights, grrr :(

I love my clutch, when maneuvering I do not touch the gas, move off and into second gear with left foot only
Entertainer, juvenile, curmudgeon, PoB, 30120
Cycling-of course, but it is far better on a Gillott
We love safety cameras, we hate bullies
Post Reply