The Department of Mobility and Infrastructure (DOMI) is planning a new design for a traffic calming project on S 18^th St. as part of the 2025 suite of Vision Zero implementation projects. The City will identify and implement targeted safety improvements on S 18^th St. between East Carson St. and Monastery Ave. to address and alleviate the safety issues that keep this section of S 18^th St. on the High Injury Network (HIN).

S 18th St. experiences a particularly high rate of angle, head-on, and sideswipe crashes, which have caused 37 injuries and one fatality from 2019-2023. This project will improve safety for residents and visitors of S 18th St by implementing traffic calming designs that have been proven to reduce crash severity. Additionally, this project aims to improve access to bus stops and create a much-needed bike connection into South Hills Neighborhoods that can be identified in DOMI's Bike(+) Plan.

The draft corridor plan is viewable below as a series of images. It is also available to view or download in PDF form in the "Document Library" section on this page.

Updated August 11, 2025

Based on feedback from community engagement sessions, our teams have made adjustments and updates to the following items that are reflected in the images below:

• Added additional "No Parking" goring markings between Harcum and Mary at Fire House (parking already restricted)
• Added parking near Mission St. on north curb for two large families on north side of street
• Moved taper near Joe's Autobody Shop to accommodate new loading zone and parking at business. Houses across the street from here have driveways
• Moved parking from west curb to east curb between Gregory and Crossman so it is accessible via sidewalk
• Budget constraints – removed crosswalks/stop bars across alleys
  • Removed additional markings on Monastery Way (crosswalks and parking lines)
• We also working with POGOH to find a safe and comfortable new station location near Monastery

A public meeting was held at the South Side Market House on Tuesday, June 24th, 2025. At the meeting, the project team presented a project progress report and walked constituents through the newly released conceptual plan. The meeting had both in-person and digital attendance options, and feedback on the conceptual plan was collected via sticky note, Zoom chat, and verbal conversation.

What We Heard

• Mostly positive feelings about proposed traffic calming and the need to address speeding
• Residential parking needs at Mission Street bend
• General support for proposed climbing bike lane
• Requests for additional speed tables and crossings
• Concern about parking enforcement re: sidewalk parking
• Concern about vehicles entering sidewalks and hitting pedestrians and buildings
• Loading concerns from businesses along the corridor
• General support for proposed Monastery Ave and Pl one-ways

On March 3rd 2025, the project team hosted a walkthrough of the S. 18th Corridor with representatives from various stakeholder groups. In attendance were representatives from South Side Smart Streets, the South Side Slopes Association, Pittsburgh Regional Transit, and City Council District 3, as well as staff from DOMI, the Office of the Mayor, and the Department of City Planning. Representatives from Hilltop Alliance, South Side Community Council, and South Side Community Action Network were also invited to participate.

On the walkthrough, we discussed issues including:

• Vehicle speeding
• Pedestrian crossing safety
• Accessibility challenges posed by sidewalk parking
• Poor signage for upcoming curves and pedestrian crossings
• Confusing intersection geometries with poor sightlines

Community representatives suggested connecting the S 18 ^th St. steps to the S 18^th/Josephine intersection and its new signalized crossings of S 18 ^th St. By coordinating the ongoing steps rehabilitation project and the Critical Sidewalk Gaps Program, DOMI identified an opportunity to rapidly advance the construction of this requested sidewalk segment and we are proud to announce the sidewalk segment was completed in June 2025. Refer to the Critical Sidewalk Gap Program's Engage Page for additional information.