Euro Truck Simulator 2

Euro Truck Simulator 2

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Chadwbacca Aug 11, 2022 @ 7:15am
How to stop AI from slowing down next to acceleration lines in highways?
I noticed that the AI doesn't crash against me anymore in roundabouts, which is great, but I'm having a constant problem in highways. Whenever there is an acceleration line, the vehicles from the highway slow down to 20-30 km/h.

This is getting infuriating because it happens almost every time. I drive on the right, as I should, but the AI is forcing me to constantly change lines because they slow down before the acceleration lines.
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Showing 1-15 of 15 comments
Wolfgang Aug 11, 2022 @ 7:28am 
Not happening on my end. Do you use any traffic mods?
Chadwbacca Aug 11, 2022 @ 7:36am 
I play with modded maps, but no traffic mods. But right now I'm playing in Spain, which it is not affected by any of my maps mods.
Wolfgang Aug 11, 2022 @ 7:37am 
Is there an accident nearby?
Chadwbacca Aug 11, 2022 @ 7:41am 
No, they just slow down in those places instinctively.
Wolfgang Aug 11, 2022 @ 7:44am 
Did another AI vehicle merge onto there?

Also, can you reproduce it on a vanilla profile (no mods ever in it)?
Chadwbacca Aug 11, 2022 @ 7:52am 
I had this happen with and without vehicles merging.

I suppose I could try it in a vanilla profile.
Trebor Aug 11, 2022 @ 8:01am 
Happens to me also. It looks like the traffic merging onto the highway have priority over traffic on the highway so they slow down. Same as tollbooths where trucks from the left have priority. Maybe it's a bug, I play modded, but I've heard people about it before. Now I just move to the left lane before the merging point.
Ryu Aug 11, 2022 @ 8:08am 
There were many complaints about AI traffic stopping in the merge lanes. Now there are complaints of AI traffic giving way for merging traffic...

There is no perfect solution. ;)
Chadwbacca Aug 11, 2022 @ 8:18am 
Originally posted by ~{DCMT}~ Ryu:
There were many complaints about AI traffic stopping in the merge lanes. Now there are complaints of AI traffic giving way for merging traffic...

There is no perfect solution. ;)
Except... there is not always vehicles trying to merge when they slow down, and they reduce the speed way too much. It would be better to code the AI to change lines if a vehicle is trying to merge into the highway.

1. AI X is going through an accelerating line.
2. AI Y tries to change lines before reaching that point.
3. ¿Left line is occupied? AI Y slows a bit down, and then change lines.
4. AI X can go safely into the road without interruption.

That sounds like a much better solution than just the car going to almost a completely stop.
garyh2462 Aug 11, 2022 @ 8:19am 
If you are running Promods, there are certain areas with a speed bug. If not, the AI in ETS has a mind of it's own, bit like real life, you just got to learn to predict and take the necessary action to avoid a collision. Other than that, fit an M16 carbine to the dashboard, that will get them moving...
Ryu Aug 11, 2022 @ 8:32am 
Originally posted by Chadwbacca:
Originally posted by ~{DCMT}~ Ryu:
There were many complaints about AI traffic stopping in the merge lanes. Now there are complaints of AI traffic giving way for merging traffic...

There is no perfect solution. ;)
Except... there is not always vehicles trying to merge when they slow down, and they reduce the speed way too much. It would be better to code the AI to change lines if a vehicle is trying to merge into the highway.

1. AI X is going through an accelerating line.
2. AI Y tries to change lines before reaching that point.
3. ¿Left line is occupied? AI Y slows a bit down, and then change lines.
4. AI X can go safely into the road without interruption.

That sounds like a much better solution than just the car going to almost a completely stop.

I'm guessing that if the traffic behaviour were as simple as that, then it wouldn't still be a controversial issue after nearly 10 years. ;)
Rob Aug 11, 2022 @ 10:29am 
For some reason now traffic merging onto a motorway has decided it had right of way instead of how it should be and giving way , I have noticed this a lot more and it seems to be because a lot of the junctions now there is no dotted white line to tell merging traffic it should give way and i guess the coders removed the command to tell merging traffic to give way

Another issue is traffic almost comes to a stop as it passes a police car on the hard shoulder
Last edited by Rob; Aug 11, 2022 @ 10:31am
Wolfgang Aug 11, 2022 @ 10:34am 
Originally posted by Sheffieldguy:
Another issue is traffic almost comes to a stop as it passes a police car on the hard shoulder
That thing certainly isn't happening on a vanilla profile. Traffic slows down to about 60km/h when there is that on the shoulder. But unless it is blocked they are never slowing down to almost a stop.
kaki_gamet Aug 11, 2022 @ 10:13pm 
"almost comes to a stop" is quite a subjective expression...

As a vanilla player in general I don't notice any issue me too. After a tollgate, traffic merging from right has right of way and this has been a rule since long time. If I remember it correctly, devs explained that if left as it should, merging traffic from right (mostly trucks) would pile up pretty fast blocked by other incoming traffic (mostly cars).

Vehicles on right lane that slow down when approaching other vehicles stopping on the shoulder is in the game maybe since they added road events altogether. And beware of AI when approaching a burning fuel tank trailer, they will comes to a complete stop if not allowed to change lane in time.

Vehicles that slow down when approaching a merging lane? Only if another vehicle is already merging, and often than not one of the two hit the other because both kept going ^^' But I don't own Black Sea and neither Iberia so what I wrote may not apply there : /
Scaramouche Aug 12, 2022 @ 2:55am 
The blinkers make all. As long as you use them, the IA will let you pass, even if they shouldnt, like when you enter in a highway. Also, at any crossing, the IA stop if you stand at the white stripe, like you would do irl.
https://steamcommunity.com/sharedfiles/filedetails/?id=2847908446
Last edited by Scaramouche; Aug 12, 2022 @ 3:05am
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Date Posted: Aug 11, 2022 @ 7:15am
Posts: 15