Rising cost of living - Page 11

**Chris** · 30-10-2021, 13:29

Quote:

Originally Posted by spiderplant

Plus the air resistance is proportional to the square of the velocity. So the drag at 70mph is roughly double that at 50mph.

In any car with a fuel consumption gauge it's easy to see the difference for yourself. Drive at 50 on the motorway and watch the mpg go up.

I knew there’d be some science around the reducing efficiency aside from the manufacturer’s choice to make the turbo work in a certain way … thank you for filling in

TheDaddy · 30-10-2021, 14:05

Quote:

Originally Posted by spiderplant

Plus the air resistance is proportional to the square of the velocity. So the drag at 70mph is roughly double that at 50mph.

In any car with a fuel consumption gauge it's easy to see the difference for yourself. Drive at 50 on the motorway and watch the mpg go up.

Iirc 57 mph is the most fuel efficient speed

**Chris** · 30-10-2021, 14:11

Quote:

Originally Posted by TheDaddy

Iirc 57 mph is the most fuel efficient speed

I’m guessing that’s why Citroen design their diesel turbo to cut in at 2,000 rpm. In 6th gear that’s around 55mph. So they seem to be aiming not to compromise the most efficient speed by only adding the turbo after it’s passed.

Taf · 30-10-2021, 14:12

Quote:

Originally Posted by papa smurf

I live in a 20mph zone -cars roar past at high speed all day and night, I think it just annoys people that the council is trying to slow them down, there are no schools near my house but it's for the safety of school kids

The first areas to go 20mph here were streets full of immigrants and ethnic businesses where they treat the roads as they did back in their original countries, walk where you like, drive where you like, park where you like.

**Hugh** · 30-10-2021, 14:49

Around here (in Leeds) it was mostly residential minor roads, and the justification was the research that showed if there was a car/child interface scenario, at 20MPH the child had a 80% chance of survival, and at 30MPH it was reduced to 20%.

TheDaddy · 30-10-2021, 15:09

Quote:

Originally Posted by Hugh

Around here (in Leeds) it was mostly residential minor roads, and the justification was the research that showed if there was a car/child interface scenario, at 20MPH the child had a 80% chance of survival, and at 30MPH it was reduced to 20%.

Why are they 24hr limits? many children out wandering at 3am, imo they're using public safety as yet another stick to beat motorists with, there is most definitely laudable reasons to have them but of bus lanes can cope without being 24 hrs then so can side roads speed limits.

OLD BOY · 30-10-2021, 16:11

The chumps who keep restricting the speed you can travel at won't be happy until it’s 5mph with a bloke in front waving a red flag.

Taf · 30-10-2021, 17:26

Another thing that has appeared here are "School Zones" that are closed to all traffic when the kids will be around. Cameras monitor for fines to be issued.

They are still active during school holidays "to avoid confusion".

**Hugh** · 30-10-2021, 18:11

Quote:

Originally Posted by OLD BOY

The chumps who keep restricting the speed you can travel at won't be happy until it’s 5mph with a bloke in front waving a red flag.

Mad Max · 30-10-2021, 18:36

Captain Hugh...

spiderplant · 30-10-2021, 21:18

Quote:

Originally Posted by OLD BOY

I hear people say that too many people disregard the 30mph limits and argue that they should therefore be reduced to 20. They really don’t see that if they are not obeying the 30 limit, there’s even less chance they’ll obey a 20 sign!

People drive at 40 in a 30 zone, and 30 in a 20 zone. That's why 20 zones work.

**Paul** · 30-10-2021, 23:04

People drive at 40 in a 20 zone as well.

---------- Post added at 22:04 ---------- Previous post was at 21:58 ----------

Quote:

Originally Posted by OLD BOY

The chumps who keep restricting the speed you can travel at won't be happy until it’s 5mph with a bloke in front waving a red flag.

Pretty sure Nottingham would prefer you not to drive at all.
The city council is full of anti car muppets, and has been for a long while.

Their latest brilliant plan is to close the main road that links east Nottingham to West Nottingham, making it much harder to get from one side of the City to the other.

It used to be a good place to drive to, park, and then shop, but these days Id tell anyone to stay away from the City, carry on up the motorway to Meadowhall, or even {cough} Derby.

I rarely travel into Nottingham now, mainly just to get to the Showcase.

OLD BOY · 31-10-2021, 02:35

Quote:

Originally Posted by spiderplant

People drive at 40 in a 30 zone, and 30 in a 20 zone. That's why 20 zones work.

Do you really think that, SP?

spiderplant · 31-10-2021, 12:00

Quote:

Originally Posted by OLD BOY

Do you really think that, SP?

Obviously I was simplifying, but yes, they do work. Plenty of data online if you are interested.

Besides, round here the 20mph zones are heavily policed. Exceed them at your peril.

Carth · 31-10-2021, 12:10

I can understand the 20mph in the area of schools, but anywhere else seems silly to me.

Furthermore, the Govt. should issue new guidance for pupils leaving school:

Look Right, Look Left, Look Right again.
If you don't see the family 4x4 double parked within 4 meters of the school gate, please wait patiently until it arrives.