Is this edible?

[Sharp Eye]

Could I please have some help identifying this plant?
This is a woody shrub/small tree. 15-20 feet tall at the side of the road in Eastern Pennsylvania.

Thanks for your help.

 

[tonym]

Check out this link and look at #35
http://www.dcnr.state.pa.us/FORESTRY/commontr/commontrees.pdf

Looks like it could be Fire Cherry (Prunus pensylvanica L.f.)