AŽD 97

Mod that adds AŽD 97 + AŽD 99 crossing signals

The crossing is controlled by "analog" redstone strengh, based on redstone dust 2 blocks under the main crossing block

strenght of 1 or higher caused white "positive" light, that indicates that the crossing is working and connected

strenght of 11 causes the red lights to start blinking

and strenght of 13 causes the barrier to come down

Extra features in 1.20.1 version:

1. Mini 1.5 block high crossing    
2. barrier can be put on the right by clicking with a stick
3. You can link multiple crossings together by putting a coloured wool under it. On the master barrier, but the wool under the redstone, and on slaves, put the wool on the block where redstone would be. This allows you to wire redstone to just one crossing, and the other ones will be in sync. Each wool is different channel, so 16 channels total (though there is distance limit on the link)
4. Doppler effect on sound.