While most newer building codes call for sidewalks to be built in to the neighborhood, older, established neighborhoods frequently do not have sidewalks or have awkwardly placed sidewalks that make it difficult for pedestrians and residents to safely share this space. A common problem for walkers and bikers to encounter in South Tampa is the "blocked sidewalk." Short driveways on small lots mean many residents inadvertently block sidewalks when they park. It is illegal to block a sidewalk with a parked car. If you find your walking route blocked by a parked car, this letter and follow up letter could be a polite but effective way to remind residents that sidewalks must be open to all.