Changing Speeding threshold

[dgm486]

Hi,

Does anyone know which file contains the speeding threshold? I am interested in changing it to a higher figure (say 3mph) to "cheat" or make it more realistic, depending on your point of view!

Many thanks.

[davep]

Would be good if this could be done. I'd prefer a 10% leeway myself.

[deltic009]

Hi,

Does anyone know which file contains the speeding threshold? I am interested in changing it to a higher figure (say 3mph) to "cheat" or make it more realistic, depending on your point of view!

Many thanks.

It's absolutely not cheating, above 100mph you have no decimal representation on HUD to show acceleration then you hit 101 and get done for speeding. It's even worse for km/h of course.

[peterfhayes]

I wrote to DTG/RSC about this 2 years ago as the current over speed limits are not realistic. No response!
I quoted a set of figures from the real world London to Faversham route and I think that at 160 km/hr the over speed limit was 15 km/hr, 80 km/hr was 10Km/hr and so on.
I guess that it would be too hard to implement now so we are stuck with the current limits.
pH

[pjt1974]

It states in the London - Faversham manual

Below the TVM display is the speedometer, where the continuously varying target speed is
indicated, as well as the current speed. (Speed is measured by a redundant tachometer to a
precision of 2%.) For an indication, under a 300 km/h aspect, the computer will take action
only if the train exceeds 315 km/h.

however, unless my calculation is wrong, 2% of 300Km/h is 6Km/h. 315Km/h is a 5% allowance. Glad to be corrected though. It's still well under Peter's figures.

Question is, if they can implement a 5% allowance on overspeed, why not a 10% or even any percentage they want? It'd make those unrealistic timings in their career scenario's easier to make!!!!!!!

[david1]

Slightly off topic but linked to this, why when line speed is 75mph or 100mph that you are not classed as speeding at 75.9 or 100.9mph but when travelling at 125.1mph you are speeding, I know that .1mph over the limit is still speeding but why does Railworks react differently at 125mph line speed

[749006]

I get the impression that there are a lot of Car drivers writing in this thread
Most Car drivers seem to think a Speed limit does not apply to them but to the other people on the road.

A Real Railway Driver is monitored by a 'Black Box' type of device and the TPWS will also kick in if you overspeed at some locations.
If he was doing 105 mph instead of 100, 5% overspeed, he will be looking at discipline or a new job.

Also if you have a Freighliner service with a Class 90 how fast can you go on a 100/125 mph railway?
You should not exceed 75mph but some scenarios require you to go faster to keep time.

[holzroller]

Indeed the advent of the black box has changed things. Back in the end of the last century the rulebook at one time allowed an error of 3 mph regardless of speed, not sure if it still applies, but no doubt one of the still active drivers on here can confirm. I have heard (from former colleagues) of Scottish drivers being caught slightly over-speed and their cab records being checked back as far as 5 years for other instances. I would imagine there would need to be some allowance for the tolerance of the speedometers. In the days of steam not every loco had a speedometer so speeding and under speeding would have been quite common. They used to work out their speed from the track joints and telegraph poles. Part of route learning used to be learning where you could safely speed and by how much when it was needed, at that time you were expected to make up time, although you would still be in trouble if they were out with the speed gun. Another part of learning the road was also learning those places where the official limit was too high and you should run slower. I remember in the 80's some P-way officials taking some runs with drivers to see where they ran harder to make up time, with a view to raising line speeds, which was subsequently done. Not something that would happen now. So really depends what era you are running in if you want to be prototypical. As for car drivers in the forum, I think this every time I see a comment about track being rough, almost every line had it's hard and soft spots, go over one of these in a 100 tonne + loco and you would learn what rough means. Even a sub 100 tonne loco like an 86 or 87 would give you the same and that's before you take into account the locos characteristics. For instance they didn't call the class 25's rock n' rollers up here for nothing. You might get a relatively smooth ride on the ECML or GWML in most places after the HST was introduced, but for a lot of lines, cab sway in TS comes nowhere near reality for most stock. I remember taking my brother on an 08 on pilot duties. The look of shock on his face when it started to move was a picture. Sorry for going OT, one thing leads to another. Unrealistic timings in scenarios suggest a lack of prototypical knowledge or a lack of understanding how to apply them in TS. Having said that there were special 90mph Freightliners running out of Glasgow, don't think they still do, but haven't heard one way or another.

[peterfhayes]

I need to modify my post which was from memory - thus:

Overspeed Limits British Rail
A small amount of over-speed allowance is made before the train's emergency brakes are applied.
At speeds below 80 km/h, the allowance is five 5 kilometres per hour.
At nominal speeds of 80–160 km/h, the tolerance is ten 10 kilometres per hour and
at speeds in excess of 160 km/h, it is fifteen 15 kilometres per hour.
Apologies
pH

[ttjph]

Slightly off topic but linked to this, why when line speed is 75mph or 100mph that you are not classed as speeding at 75.9 or 100.9mph but when travelling at 125.1mph you are speeding, I know that .1mph over the limit is still speeding but why does Railworks react differently at 125mph line speed

I think this is a rounding error/issue. If you toggle between F4 and F5 views, IIRC you'll see that the HUD rounds up or down either side of xxx.5 - so an F5 speed of 125.4 shows as 125 in F4, but 125.6 shows as 126 (and is therefore speeding).

This is, of course, disregarding the fact that the F5 value is for the loco and the F4 is for the last vehicle in the consist...

[pjt1974]

Slightly off topic but linked to this, why when line speed is 75mph or 100mph that you are not classed as speeding at 75.9 or 100.9mph but when travelling at 125.1mph you are speeding, I know that .1mph over the limit is still speeding but why does Railworks react differently at 125mph line speed

I think this is a rounding error/issue. If you toggle between F4 and F5 views, IIRC you'll see that the HUD rounds up or down either side of xxx.5 - so an F5 speed of 125.4 shows as 125 in F4, but 125.6 shows as 126 (and is therefore speeding).

This is, of course, disregarding the fact that the F5 value is for the loco and the F4 is for the last vehicle in the consist...

It's like Concorde, as you go faster, it expands, and during expansion the back is going slower than the front!!!!

[lenfish]

It's like Concorde, as you go faster, it expands, and during expansion the back is going slower than the front!!!!

As predicted by the Theory of Railativity.

Regards,

Len

[Rogge]

What i would like to see first is decimal representation for speeds over 100 in the HUD so that one more easily can see when an over speed is coming up, the way i can do today for speeds under 100.

I know that i can press F5 and see it, but i cannot have that overlay and the HUD active at the same time.