Street crossing the tracks are made with cork HO switch pads. They are the same width as a two lane road in O scale and have beveled edges. I painted the cork with a diluted wash of Woodland Scenics Asphalt paint. I have done 3 separate modules now with grade crossings. I built them up using layers of cork glued down underneath.
In the first pic you also see a module behind that is painted with black textured rustoluem spray paint. My city is never setup quite the same way so I have not put down traffic lines yet.
In the back is a piece of cork just laid do to match the grade crossing. Notice it is not painted yet.
3751 hits the same grade crossing and in the background I just used black poster board cut the same width to made the road go beyond. I used the pinstripe tape for road stripes but it peeled up eventually. The paint pens from WS don't like my cork either so still working on a solution.
T&P 610 blowing threw a crossing.