Does this help?
@josefpav yes one is referring to the traffic on the roads.

Here is a picture...
Uploaded with 
ImageShack.us
Here are the configs:
Road
kuid                                    <kuid:128184:37018>
region                                  "Hungary"
type                                    "Utak"
length                                  4
grounded                                0
istrack                                 0
width                                   7.6
bendy                                   1
isroad                                  1
carrate                                 3
uncached_alphas                         1
obsolete-table
{
}
description                             "aszfalt ut regi festett vonallal"
trainz-build                            2.4
category-class                          "SR"
category-region-0                       "HU"
category-era-0                          "1970s"
category-era-1                          "1980s"
category-era-2                          "1990s"
category-era-3                          "2000s"
asset-filename                          "ut_acs"
kind                                    "track"
username                                "regi toredezett,festett"
thumbnail                               
author                                  "Rosta Laszlo ( loca)"
organisation                            "ROLTRAINZ"
contact-email                           "rolaci@t-online.hu"
contact-website                         "h"
license                                 "Copyright 2005 by ROLTRAINZ, Hungary (fototexturak felhasznalasa csak a szerzo engedelyevel
"
kuid-table
{
}
Region
@josefpav you might recognise this region 

username                                "HP-Trainz Region Marias Pass"
category-class                          "YX"
kind                                    "region"
watercolor                              70,100,200
defaultjunction                         0
longitude                               48,30,18
latitude                                111,51,25
altitude                                1008
ontheright                              1
car0                                    <kuid:68787:1252>
car1                                    <kuid:68787:1315>
car2                                    <kuid:68787:1332>
car3                                    <kuid:68787:1648>
car4                                    <kuid:68787:1645>
car5                                    <kuid:68787:1673>
car6                                    <kuid:68787:1674>
car7                                    <kuid:68787:1678>
car8                                    <kuid:68787:1679>
car9                                    <kuid:68787:1680>
car10                                   <kuid:68787:1681>
car11                                   <kuid:68787:1682>
car12                                   <kuid:68787:1685>
car13                                   <kuid:68787:1687>
car14                                   <kuid:68787:1688>
car15                                   <kuid:68787:1689>
car16                                   <kuid:68787:1690>
car17                                   <kuid:68787:1691>
car18                                   <kuid:68787:1692>
car19                                   <kuid:68787:1693>
car20                                   <kuid:68787:1696>
car21                                   <kuid:68787:1701>
car22                                   <kuid:68787:1703>
car23                                   <kuid:68787:1709>
description                             "Rocky Mountains, steep grades, heavy freight trains, Amtrak Empire Builder, An Eldorado for trainspotters. Untouched nature, Glacier National Park, wild animals, wheat farming. Blackfoot indians. Montana state."
username-fr                             "HP-Trainz Region Marias Pass"
username-de                             "HP-Trainz Region Marias Pass"
description-de                          "Rocky Mountains, Steilstrecken, schwere Güterzüge, Amtrak Empire Builder. Ein Eldorado für Bahnfans und -fotografen. Unberührte Natur, Glacier Nationalpark, wilde Tiere, Weizenanbau. Schwarzfußindianer. Bundesstaat Montana."
username-hu                             "HP-Trainz Marias Pass régió"
username-cz                             "HP -Trainz oblast Marias Pass"
description-cz                          "Skalisté hory"
username-pl                             "HP-Trainz Region Marias Pass"
category-era                            "1930s;1940s;1950s;1960s;1970s;1980s;1990s;2000s;2010s"
category-region                         "US"
trainz-build                            2.9
thumbnails
{
  0
  {
    image                               "thumbnail.jpg"
    width                               240
    height                              180
  }
}
kuid                                    <kuid2:68787:200300:11>
kuid-table
{
  0                                     <kuid:68787:1252>
  1                                     <kuid:68787:1315>
  2                                     <kuid:68787:1332>
  3                                     <kuid:68787:1648>
  4                                     <kuid:68787:1645>
  5                                     <kuid:68787:1673>
  6                                     <kuid:68787:1674>
  7                                     <kuid:68787:1678>
  8                                     <kuid:68787:1679>
  9                                     <kuid:68787:1680>
  10                                    <kuid:68787:1681>
  11                                    <kuid:68787:1682>
  12                                    <kuid:68787:1685>
  13                                    <kuid:68787:1687>
  14                                    <kuid:68787:1688>
  15                                    <kuid:68787:1689>
  16                                    <kuid:68787:1690>
  17                                    <kuid:68787:1691>
  18                                    <kuid:68787:1692>
  19                                    <kuid:68787:1693>
  20                                    <kuid:68787:1696>
  21                                    <kuid:68787:1701>
  22                                    <kuid:68787:1703>
  23                                    <kuid:68787:1709>
  24                                    <kuid:-1:100553>
}
Hope this helps
Regards
Johan