speed cameras

please can someone tell me how to do speed camera and grit bins. for vthe speed cameras i tag highway with speed camera but nothing comes on the map for the grit bin i tagged amenity and git bin.

make an node and add this highway=speed_camera http://wiki.openstreetmap.org/wiki/Tag:highway%3Dspeed_camera

I already did this but nothing comes on the map is the node green and round

Not everything is rendered.