Speed Limits

Moderators: delilush, ply8808

Speed Limits

Postby Kinematic » Thu Jan 28, 2016 3:34 pm

Hey PhoenixofMt,

Could you finish up adding the SL to I-90 E and N / US-191 S and N. My editing area stops just outside Livingston. Double check all exits, they're improperly labeled. US-89 Terminates here and begins here. US-10 no longer exists in Montana. US-191 Exits at and begins in Big Timber. Thanks
[img]https:///Evwimo[/img][img]https:///ESnp3j[/img]
Montana Wiki | MT To Do List
Kinematic
Map Raider
Map Raider
 
Posts: 155
Joined: Fri Jan 09, 2015 12:05 am
Location: Montana
Has thanked: 36 times
Been thanked: 27 times

Re: Speed Limits

Postby PhoenixofMT » Wed Feb 03, 2016 6:54 pm

Sure. By the way, at some point coming down the hill towards Livingston the SL bumps to 80mph. I haven't nailed down the change point yet, but the segments attached to this exit should be safe to set this high.

Sent from my Nexus 5X using Tapatalk
PhoenixofMT
Area Manager
Area Manager
 
Posts: 66
Joined: Tue Nov 03, 2015 1:05 am
Location: Bozeman, MT
Has thanked: 12 times
Been thanked: 15 times

Re: Speed Limits

Postby PhoenixofMT » Wed Feb 03, 2016 7:19 pm

What are the guidelines for exit speed limits? If the ramps are short they may have signs for 25 or 15 mph to show you need to quickly decelerate to about this speed to make a sharp curve or short stop. The normal-sized ramps seem to just be "stop ahead" mph. Around 40 - 45 seems reasonable, or do we just want to follow the signage?
PhoenixofMT
Area Manager
Area Manager
 
Posts: 66
Joined: Tue Nov 03, 2015 1:05 am
Location: Bozeman, MT
Has thanked: 12 times
Been thanked: 15 times

Re: Speed Limits

Postby Kinematic » Wed Feb 03, 2016 7:44 pm

PhoenixofMT wrote:What are the guidelines for exit speed limits? If the ramps are short they may have signs for 25 or 15 mph to show you need to quickly decelerate to about this speed to make a sharp curve or short stop. The normal-sized ramps seem to just be "stop ahead" mph. Around 40 - 45 seems reasonable, or do we just want to follow the signage?


Based on what Alan has stated "based on what I've read recently, I would concur that ramps and some at-grade connectors should not have their speed set" The signage before a ramp merely advises drivers as a caution to what is a safe speed.
[img]https:///Evwimo[/img][img]https:///ESnp3j[/img]
Montana Wiki | MT To Do List
Kinematic
Map Raider
Map Raider
 
Posts: 155
Joined: Fri Jan 09, 2015 12:05 am
Location: Montana
Has thanked: 36 times
Been thanked: 27 times

Re: Speed Limits

Postby PhoenixofMT » Thu Feb 04, 2016 9:45 pm

Are we going with the "Truck" speed limit (65)? Because the default freeway speed limit is 75, and it's 80 east of Livingston.
PhoenixofMT
Area Manager
Area Manager
 
Posts: 66
Joined: Tue Nov 03, 2015 1:05 am
Location: Bozeman, MT
Has thanked: 12 times
Been thanked: 15 times

Re: Speed Limits

Postby herrchin » Thu Feb 04, 2016 9:54 pm

75/80. If we set a lower limit, regular passenger-vehicle Wazers would be getting limit dings constantly. Truckers are responsible for their tighter regulations. Maybe at some point we'll be able to do vehicle type and special-lane adjustments (like POV lanes).
USA Country Manager / UT and IA SM
[ img ][ img ][ img ][ img ][ img ][ img ]
herrchin
Country Manager
Country Manager
 
Posts: 320
Joined: Mon Jun 22, 2015 6:05 pm
Location: Lincoln, NE, USA
Has thanked: 284 times
Been thanked: 198 times

Re: Speed Limits

Postby Kinematic » Fri Feb 05, 2016 1:33 pm

herrchin wrote:75/80. If we set a lower limit, regular passenger-vehicle Wazers would be getting limit dings constantly.


I agree with what herrchin posted. 75/80. It's difficult to know exactly where the 80 SL begins at certain parts on I-90/I-94 unless you live in and around the area. For instance I know the route between G.F and Helena. There is some fuzzy documentation from some newspapers on the internet that suggest where the SL are at but still not a great reference.
[img]https:///Evwimo[/img][img]https:///ESnp3j[/img]
Montana Wiki | MT To Do List
Kinematic
Map Raider
Map Raider
 
Posts: 155
Joined: Fri Jan 09, 2015 12:05 am
Location: Montana
Has thanked: 36 times
Been thanked: 27 times

Re: Speed Limits

Postby PhoenixofMT » Fri Feb 05, 2016 4:16 pm

That's what I thought. I ask because it's set to 65 around Bozeman and it should be 75.

It goes up to 80 coming down the hill into Livingston from the west. I still haven't nailed down where (maybe this weekend.) I've confirmed it's 80 up to Park City. I wouldn't be surprised if it was 80 all the way to North Dakota, maybe slowing down for Billings.

There's also a bit between Bozeman and Three Forks that's 80, but I'm not sure exactly where.

This Missoulian article has some detail for western Montana. You might be able to correlate mile marker references with some of the state maps, but I guess east-of-the-divide doesn't matter to the hill people.

With fuel as cheap as it is, I might have take a few recognisance road trips.
PhoenixofMT
Area Manager
Area Manager
 
Posts: 66
Joined: Tue Nov 03, 2015 1:05 am
Location: Bozeman, MT
Has thanked: 12 times
Been thanked: 15 times

Re: Speed Limits

Postby Kinematic » Fri Feb 05, 2016 4:51 pm

PhoenixofMT wrote:That's what I thought. I ask because it's set to 65 around Bozeman and it should be


I believe I set it to 65 for the reason that MDT says that once you enter a urbanized population SL drops to 65. If you know where about we can fix it.


Sent from my iPhone using Tapatalk
[img]https:///Evwimo[/img][img]https:///ESnp3j[/img]
Montana Wiki | MT To Do List
Kinematic
Map Raider
Map Raider
 
Posts: 155
Joined: Fri Jan 09, 2015 12:05 am
Location: Montana
Has thanked: 36 times
Been thanked: 27 times

Re: Speed Limits

Postby herrchin » Fri Feb 05, 2016 5:09 pm

Except for the areas referred to in the news, I'm 99.9% sure it's 80 everywhere except where they pass near/through some urban spots.
USA Country Manager / UT and IA SM
[ img ][ img ][ img ][ img ][ img ][ img ]
herrchin
Country Manager
Country Manager
 
Posts: 320
Joined: Mon Jun 22, 2015 6:05 pm
Location: Lincoln, NE, USA
Has thanked: 284 times
Been thanked: 198 times

Next

Return to Montana

Who is online

Users browsing this forum: No registered users