RattRoads is essentially the successor to ARRS, featuring revamped sprites, 9 additional roadtypes, and 4 tramtypes to take advantage of some of NRT's features. All road types are compatible to each other and the default [ROAD] type so any vehicles can drive on them. Below is a basic overview of what is included:
- Old Town Roads (Hidden) [OLD_] - This is a special road type which only towns can build when starting a game pre-1920. It is just a visual combination of the dirt and sett paved roads to give early towns some extra character. It is not available for you (the player) to build.
- Dirt Road [DIRT] - Everyone's favorite bumpy, dusty, dirt roads make a return for RattRoads featuring a shiny dirty new look. These roads are available from year 0 and due to being even less safe than their paved cousins only have a default speed limit of 25mph.
- Sett Paved Road [SETT] - Also available from year 0, these roads offer a paved alternative to the muddy, bumpy roads of the old days. Made with sett stones, they offer only a slight increase in speed to 30mph, but they look especially appropriate inside old towns.
- Basic Asphalt Road [ROAD/ASP0] - Introduced in 1920 and nothing more than a strip of pavement, it is cheap and only has a default speed limit of 40mph.
- Improved Asphalt Road [ASP1] - Boasting improved safety features, such as a yellow line painted on the surface, this roadtype is introduced in 1940 and has a default speed limit of 55mph
- Modern Asphalt Road [ASP2] - This roadtype is introduced in 1970 and includes paved shoulders and fog lines, allowing a higher speed limit of 85mph.
- Highway [HWAY] - Introduced in 1955, the Highway roadtype has no speed limit, but is very expensive. Note that houses will not build along this roadtype!
- Electrified Sett Paved Road [ELSP]
- Electrified Basic Asphalt Road [ELA0/ELRD]
- Electrified Improved Asphalt Road [ELA1]
- Electrified Modern Asphalt Road [ELA2]
- Basic Tramway [RAIL]
- Electric Tramway [ELRL]
- Concrete Tramway [SAAN]
- Concrete Electric Tramway [SAAE]
Here is a handy reference table for the speed limit parameter:
Code: Select all
type | easy | hard | harder |
---------------------------------------------------------------
mph / kph / m/s mph / kph / m/s mph / kph / m/s
---------------------------------------------------------------
dirt 25 / 40 / 10 | 15 / 20 / 06 | 10 / 15 / 03 |
sett 30 / 50 / 12 | 20 / 30 / 08 | 15 / 20 / 06 |
road 40 / 60 / 17 | 30 / 50 / 12 | 20 / 30 / 08 |
asp1 55 / 90 / 24 | 40 / 60 / 17 | 30 / 50 / 12 |
asp2 85 / 140 / 37 | 60 / 100 / 26 | 50 / 80 / 21 |
hway inf / inf / inf | 85 / 140 / 37 | 70 / 110 / 31 |
This NewGRF requires OpenTTD 13.0 or later to function, and as usual is released under GPL v2 license. Huge thanks to the team behind NRT and OpenTTD itself for making this possible!

Enjoy!