
U&RaTT - Adds new graphical roads to use the features supported by NRT. This set includes a wide selection of roads: unpaved, asphalt and "decorative" roads. It is compatible with any climatic conditions and also the movement of vehicles: right-hand and left-hand. Tramway and trolleybus tracks are available if you have connected other tram and trolleybus sets.
U&RaTT: Mini - these kits belong to U&RaTT. Road (including trolleybus and tram) types, which are minimized to simplify the gameplay. Speed limits on each road and tramway are also regulated.
U&RaTT: Lighting v4 - Adds lighting on tram tracks to show how eye candy.

UMetro_NRT - adds a metro in the form of tram tracks. Compatibility "Dutch Metros as Trams V002" (on Bananas). Here

U&ReRMM 2 - this is a continuation from U&ReRMM, not only new sprites with graphics, add use of precombined overlay sprites. Railway types: standard rail, electrified rail, narrow gauge, 3rd rail, monorail and maglev.
Some train set supported: 2сс Train NML, Iron Horse 2 (recommended version 2.64.0 and later), NARS, UKRS 2, Dutch Trainset 2.1.0, Japan Set 3: Train*, also French Trains Set (Narrow Gauge). This function works correctly for standard and supported track sets.
Some Newgrf Train has its own "native" rails, it is recommended to disable everything.
U&ReRMM 2: Mini - These sets belong to U&ReRMM 2. All railway tracks are kept to a minimum and remove all speed limits to simplify the gameplay. Second-hand (standardized rail-type scheme) railway sets are still compatible.
U&Bridges - Replaces the original graphics with new ones. These bridges must be connected to road and railway tracks
U&GUI - replaces the original graphics with new icons and cursors, also increases by x1.5 (30x30 px)

All sets of supported versions of OpenTTD 13.0 and also JGRPP 0.51.0 and later. U&RaTT:Roadstop supported version of OpenTTD 14.0 and JGRPP.
Available to download through the online content BaNaNas:
U&RaTT 1.1
U&RaTT: Mini v6.1
U&RaTT: Roadstops 0.1
U&ReRMM 2 1.6
U&ReRMM 2: Mini v4
U&Bridges 1.5
U&Trees v2
U&GUI v2
I think, probably. You liked it. Enjoy
Credit
U&RaTT, U&RaTT: Mini, UReRMM is a license : GPL 3
The exception is UReRMM 2, U&ReRMM 2: mini and U&Bridges, which is licensed under CC BY-NC-SA 3.0.