Sharraxaadda

Cars seem to constantly drive through this stop sign as if it doesn't exist. Along a bike path to the metro, metro is 1/4 mile away. My wife and I while running where both hit by a single car at this intersection, we where using the bike path and crossing the street; car drove right through the stop sign. Hospital is located here. Suggestions: less shrubbery, more signage, remove or lessen the curve in the road (its currently curves like a ramp entering a highway.)