RattRoads is essentially the successor to ARRS, featuring revamped sprites and 5 additional roadtypes to take advantage of some of NRT's features. All six 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:
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 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] - Introduced in 1920, this is the roadtype towns will build by default. Nothing more than a strip of pavement, it is cheap and only has a speed limit of 40mph. Note that because this roadtype is the default, towns will always build this type, even before 1920.
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 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. Eventually I will include a set of objects to augment highways similar to the way I tried to in ARRS Objects, but they are not included yet. Note that houses will not build along this roadtype!
What's that? You don't want any speed limits? You want them slower? You want to build Highways in 1700? Perfect, because since version 0.2.0, RattRoads now has parameters to allow you to configure all of those things as you please! And as a bonus for our European friends, there's now also a Euro/UK road surface alternative which can be activated by parameter (default is still American style), as well as an available French translation (which is by now very outdated and incomplete)!
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Please mind that this roadset is not 100% complete, especially due to the ongoing development of NotRoadTypes itself. *cough*don't build tunnels*cough*


This NewGRF requires OpenTTD-master-20190502 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!