"Stop" in the foreground, "bicycle [crossing]" just ahead.
Pedestrian Only Road. DANGER. Bicycle riding prohibited. (at the bottom) Bicycle Safety Model Area
This is not a road. Please dismount bikes etc when passing through. JR East Urban Development
Pedestrian Only Road. Bicycle riding prohibited. Koenji Pal, Suginami Police. (I love the tail drawn on the bicyclist)
Bicycles left will be removed (I've seen bikes tagged here several times).
Indicates that no bikes or pulled carts can be taken through a tunnel.

Frequent Bicycle Accidents. DANGER.