If the zoning change is approved, the riverfront would be opened up to a broader range of uses including residential, retail and educational while limiting more industrial uses. The current zoning district is “more permissive of heavy industrial uses” like car washing companies, construction-related activities and other intensive operations, according to a city planning official. RIV-GI allows general industrial uses, while RIV-IMU would shift the area to industrial mixed-use. She noted that heavy industrial zones are generally not in more affluent neighborhoods like Shadyside and Squirrel Hill. Railroads put brakes on proposalBut railroad industry representatives pushed back against the zoning change proposal.