Road Jams During Rush Hour

[Sallyriana 1]

So i recently started another city but i managed to mess up again and while i got plenty of public transportation certain sections of my roads are packed again, i included some screenshots, does anyone have some tips on how i can lighten the load? It's still pretty new so it's easier to make changes now.

 

I appreciate any tips ^^

 

http://i62.tinypic.com/2qw2c0n.jpg

http://i57.tinypic.com/2qmoq5w.jpg

http://i59.tinypic.com/25814dj.jpg

[migamin 38]

Other examples.

[asasa45454 4]

You cant use avenues for the whole city. They will cause traffic jams because cars cant turn across the median, they will have to make U turns when an intersection comes up. As you can guess, in a game with broken transit, this will destroy any hopes of a clean flowing grid already. 

 

If only we had left turn arrows :/

 

p.s. when you have avenues, there is no point to the medium density one (aside from limiting development, bu that seems silly). It will take up more space than a medium density road while not offering any more lanes of traffic, AND wont allow cars to enter buildings on their left.

[MINIggy03 227]

This was by far my most successful network of roads,

 

It worked beautifully, had very little traffic issues. 

[Cob92 360]

You don't have that much traffic; it's just being managed very poorly. You're using avenues unnecessarily, forcing local traffic to go through intersections whereas it could just turn at will if you used normal streets. Additionally, it looks like your system tries to funnel all the traffic into a handful of connectors, which is guaranteed to cause traffic issues even in small cities (this is the reason IRL why Austin, TX has traffic as bad as cities 3 times its size). What I find is that a well connected grid works well for dispersing traffic within districts, while avenues should be restricted to use as main thoroughfares. If you want to use a dendrite system, make sure that you don't overload any avenue with too much development on the branch streets. Avoid zoning on avenues whenever possible, since traffic turning in and out of driveways slows down the flow. Build elevated bypasses or tunnels to connect key areas and avoid local congestion. Do not build a road unless it is absolutely needed; redundant roads just create unnecessary intersections and exacerbate congestion.

[Sallyriana 1]

You don't have that much traffic; it's just being managed very poorly. You're using avenues unnecessarily, forcing local traffic to go through intersections whereas it could just turn at will if you used normal streets. Additionally, it looks like your system tries to funnel all the traffic into a handful of connectors, which is guaranteed to cause traffic issues even in small cities (this is the reason IRL why Austin, TX has traffic as bad as cities 3 times its size). What I find is that a well connected grid works well for dispersing traffic within districts, while avenues should be restricted to use as main thoroughfares. If you want to use a dendrite system, make sure that you don't overload any avenue with too much development on the branch streets. Avoid zoning on avenues whenever possible, since traffic turning in and out of driveways slows down the flow. Build elevated bypasses or tunnels to connect key areas and avoid local congestion. Do not build a road unless it is absolutely needed; redundant roads just create unnecessary intersections and exacerbate congestion.

I wanted to use bridges that would go from residential to the industrial going over the main road but it wouldn't take it whatever i tried, but are you saying i should use normal high density roads between the residential areas? and keep the big avenues for the sides, etc? i think i'm starting to get the hang of it but it's still hard

 

-edit-

I'm also thinking of keeping my use of districts but using underground tunnels and bridges above ground (with a main road above), do you think it would work, or would i just end up getting jams underground XD

[Cob92 360]

 

You don't have that much traffic; it's just being managed very poorly. You're using avenues unnecessarily, forcing local traffic to go through intersections whereas it could just turn at will if you used normal streets. Additionally, it looks like your system tries to funnel all the traffic into a handful of connectors, which is guaranteed to cause traffic issues even in small cities (this is the reason IRL why Austin, TX has traffic as bad as cities 3 times its size). What I find is that a well connected grid works well for dispersing traffic within districts, while avenues should be restricted to use as main thoroughfares. If you want to use a dendrite system, make sure that you don't overload any avenue with too much development on the branch streets. Avoid zoning on avenues whenever possible, since traffic turning in and out of driveways slows down the flow. Build elevated bypasses or tunnels to connect key areas and avoid local congestion. Do not build a road unless it is absolutely needed; redundant roads just create unnecessary intersections and exacerbate congestion.

I wanted to use bridges that would go from residential to the industrial going over the main road but it wouldn't take it whatever i tried, but are you saying i should use normal high density roads between the residential areas? and keep the big avenues for the sides, etc? i think i'm starting to get the hang of it but it's still hard

 

-edit-

I'm also thinking of keeping my use of districts but using underground tunnels and bridges above ground (with a main road above), do you think it would work, or would i just end up getting jams underground XD

 

 

You need to make sure that your bypasses are direct routes from point A to point B. Sims will not drive on excessively long roads unless there is seriously insane traffic congestion on the shorter route. Your district plan would work as long as you have enough lane capacity connecting each district. Most of the congestion inside your city is caused by intersections and driveways. Eliminate those and you'll find that traffic flows smoothly.