No residential road connection with NAM 36 in old cities

[johnb10000 0]

After installing NAM version 36 there is no road connection from the residential areas to industrial or commercial areas in certain cities in a region. Houses momentarily show the no road connection symbol but won't develop. The city population stays at zero.

The original road, street and avenues were used instead of the NAM roads.

This problem only occurs on an existing city or a city that has been completely obliterated.

If a residential area is placed near a industrial or commercial area in a new city the industrial and residential will quickly develop with traffic between them. Everything works fine in a new city.

In an old city there is no traffic from the residential area to the industrial or commercial areas.  This problem still occurs if I obliterate the city and start over.  When placing a residential area close to an industrial area the houses won't develop and there is absolutely no residential  traffic to the industrial area.  Industrial and commercial areas quickly develop.  Connecting a road from the industrial areas to the edge of the map results in truck traffic to the other city but residential still won't develop.

If a building like a school, police station or another building is placed on the other side of the industrial area  then the houses will finally develop with traffic going to the school and other buildings.  There still is no traffic going to any of the industrial or commercial buildings.

[Tarkus 6,933]

It'd help a lot to see how one of the affected cities is laid out, as there's not really any way to diagnose it without that.  Additionally, are there any other mods or plugins you've installed into the game besides NAM 36?

-Tarkus

[johnb10000 0]

SimCity 4 was downloaded from gog.com and I don't know if it came with mods or plug-ins. 

The affected region is a copy of the  London region where I modified the config.bmp file so I can have many larger cities in the region.

The test layout is just a single road with some industrial zones on one end and residential on the other end with of a gap of a few tiles between the zones.  Each zone is a square about 15 tiles across.  All the cities tested used the same format.  I tried obliterating a couple of cities and this layout still didn't work  

The test layout works fine with existing cities in the Berlin, original London and the Timbuktu tutorial regions.

[jeffryfisher 2,176]

13 hours ago, johnb10000 said:

Each zone is a square about 15 tiles across.

15 cells is way too big for a zone.

[johnb10000 0]

I got it working.

Before you could plop down some, residential, commercial and industrial zones and buildings would immediately pop up in all zones.

When I made the industrial zones a lot bigger the housing finally started to develop.