Washington Avenue: Road Diet or Road Buffet? (A) Custom Case Solution & Analysis

Evidence Brief: Washington Avenue Case Data

1. Financial and Quantitative Metrics

• Traffic Volume: Washington Avenue carries approximately 17,000 to 25,000 vehicles per day depending on the segment.
• Safety Record: The corridor is part of Philadelphias High Injury Network. Between 2014 and 2018, 191 crashes occurred, including four fatalities and six serious injuries.
• Safety Projections: Federal Highway Administration (FHWA) data indicates that road diets typically reduce total crashes by 19% to 47%.
• Demographics: The western portion of the corridor (Point Breeze) has a higher concentration of long-term Black residents, while the eastern portion has seen rapid gentrification and demographic shifts toward younger, wealthier residents.
• Commercial Impact: Over 100 businesses operate on the avenue, many requiring frequent loading and unloading of heavy industrial materials or food supplies.

2. Operational Facts

• Corridor Length: 2.1 miles stretching from 4th Street to Grays Ferry Avenue.
• Current Configuration: Primarily five lanes (two travel lanes in each direction and a center turn lane).
• Proposed Configuration A (3-Lane): One travel lane in each direction, a center turn lane, and protected bike lanes.
• Proposed Configuration B (4-Lane): Mixed configuration with two lanes in one direction and one in the other, or alternating patterns to balance throughput and safety.
• Paving Schedule: The project is tied to a mandatory repaving cycle; failure to decide on a layout results in repaving the existing, dangerous five-lane configuration.

3. Stakeholder Positions

• OTIS (Office of Transportation, Infrastructure, and Sustainability): Prioritizes Vision Zero goals and safety but faces pressure to maintain political consensus.
• 7th and 8th District Councilmembers: Hold informal veto power over striping changes; sensitive to vocal opposition from long-term residents.
• Business Owners: Concerned that reducing lanes will impede delivery access and drive customers away due to increased congestion.
• Bicycle Coalition of Greater Philadelphia: Strongly advocates for the 3-lane diet to ensure cyclist safety and transit efficiency.
• Point Breeze Residents: Some view the road diet as a tool for gentrification that prioritizes new residents over the needs of the existing community.

4. Information Gaps

• Maintenance Costs: The case does not specify the long-term cost difference in maintaining protected bike lane barriers versus standard striping.
• Diversion Modeling: Detailed data on how much traffic will divert to parallel residential streets (like Christian or Ellsworth) is absent.
• Economic Impact Study: Lack of specific revenue projections for local businesses under different lane configurations.

Strategic Analysis: Safety vs. Throughput

1. Core Strategic Question

• How can the City of Philadelphia balance the urgent safety requirements of the High Injury Network with the political and economic demands of a bifurcated stakeholder base?
• Can a technical infrastructure solution address deep-seated social anxieties regarding gentrification and displacement?

2. Structural Analysis

Applying a Stakeholder Salience Framework reveals a misalignment between power and urgency. Cyclists and new residents have high urgency but limited political power. Long-term residents and business owners have high power through City Council influence. The 3-lane diet is the technically superior safety solution, but it lacks the political legitimacy required for implementation in the western segments.

3. Strategic Options

4. Preliminary Recommendation

Implement the Hybrid 4-lane layout as a transitional strategy. While the 3-lane diet is the safety ideal, the political reality of Councilmanic Prerogative in Philadelphia means a 3-lane plan will likely be blocked entirely, resulting in a five-lane status quo. The 4-lane option allows for improved pedestrian medians and dedicated loading zones, addressing business concerns while marginally improving safety.

Implementation Roadmap

1. Critical Path

• Month 1: Finalize engineering drawings for the hybrid 4-lane configuration, specifically detailing loading zone locations.
• Month 2: Secure formal letters of non-opposition from the 7th and 8th District Council offices.
• Month 3: Execute a targeted communications campaign focusing on business loading benefits rather than bike safety to reduce local friction.
• Month 4-6: Phased repaving and restriping, starting with the eastern segments to demonstrate immediate utility.

2. Key Constraints

• Loading Zone Enforcement: The 4-lane plan fails if double-parking continues; requires a dedicated PPA (Philadelphia Parking Authority) enforcement detail.
• Councilmanic Prerogative: A single negative statement from a councilmember can halt the project regardless of OTIS technical data.

3. Risk-Adjusted Implementation Strategy

To mitigate the risk of total project cancellation, the city must decouple the paving from the final striping plan. Pave the road immediately to address surface hazards, then use temporary thermal tape for the new lane configuration. This allows for a six-month pilot period where traffic flow and business impact can be measured before permanent epoxy paint is applied. If congestion on side streets exceeds a 15% increase, the configuration can be adjusted without the cost of grinding off permanent markings.

Executive Review and BLUF

1. BLUF

Philadelphia must abandon the all-or-nothing 3-lane diet pursuit in favor of a segmented, data-driven hybrid model. The technical safety benefits of a 3-lane diet are irrelevant if political opposition from the 2nd and 7th Districts prevents implementation. By deploying a 3-lane configuration east of 11th Street and a 4-lane configuration to the west, the city secures immediate safety gains for the highest-density pedestrian zones while preserving the industrial utility and political support in the western corridor. Execution must prioritize loading zone enforcement to prevent the congestion that fuels local opposition. Delaying the project for further consensus is a failure of leadership that leaves the High Injury Network unaddressed.

2. Dangerous Assumption

The analysis assumes that traffic diversion to residential side streets is a secondary concern. In a city with Philadelphias narrow grid, a 20% diversion from Washington Avenue could paralyze local transit and emergency services on Christian and Ellsworth Streets, creating a new safety crisis elsewhere.

3. Unaddressed Risks

• Enforcement Failure: Probability: High. Consequence: Severe. If the new loading zones are not strictly enforced, the 4-lane configuration effectively becomes a 2-lane bottleneck, vindicating all local opposition.
• Political Contagion: Probability: Medium. Consequence: Moderate. Opposition in the western segment may spread to the eastern segment, leading to a full reversal of the 3-lane portion by future council members.

4. Unconsidered Alternative

The team failed to consider a time-of-day restricted configuration. Implementing peak-hour clearways (no parking) would maintain throughput during commutes while allowing for wider pedestrian spaces or protected lanes during off-peak hours. This would address the throughput needs of commuters without sacrificing the safety of residents during the majority of the day.

5. Verdict

APPROVED FOR LEADERSHIP REVIEW