I-95 CSP

Summary of Design Concepts

Minimize the impact to existing rail lines and FDR Park
Understand that much of the land surrounding the interchange is within the 100-year floodplain
Support the economic development of the Navy Yard by increasing the interchange capacity, identifying new access points, and promoting improved multi-modal access
Maintain the exit circulation in the Stadium District
Connection to Terminal Avenue creates operational issues at Broad Street interchange

View of Citizens Bank Park from Broad St.

Conceptual Design Process

Three different levels of design concepts were developed that balance the needs of the project, extent of potential impacts, and potential costs.

We have defined each concept as LOW, MEDIUM, and HIGH.

Each concept presents a different solution and potential tradeoffs on the surrounding safety, traffic, connectivity, multimodal services, socioeconomic resources, cultural resources and natural resources.

NEXT PREVIOUS HOME

Safety Challenges

Shoulder Widths: Existing shoulder widths are below modern safety design standards.
Merging Lanes: The length of ramp merging lanes are below modern safety design standards. These conditions impact safety on the corridor.

Congestion Challenges

Highway Lanes: Traffic analysis indicates that congestion will increase by 2045 along the stretch of I-95 between the Broad Street and Walt Whitman Interchanges if the highway is left in its current configuration, particularly affecting the Navy Yard, PhilaPort, and event traffic.
Broad Street Exit: Traffic analysis indicates that congestion will increase by 2045 at Broad Street Exit if the highway is left in its current configuration. Specifically, the northbound I-95 off ramp to Broad Street is a challenge. Traffic trying to reach the Navy Yard is currently required to U-turn on Broad Street after existing I-95.

NEXT PREVIOUS

LOW

MEDIUM

HIGH

Design Challenges	Low		Medium		High
Design Challenges	Differences from Existing	Tradeoffs	Differences from Low	Tradeoffs	Differences from Medium	Tradeoffs
Safety Challenges: Shoulder Widths	Shoulder widths are increased	Physical footprint of the highway will get wider without adding additional lanes or capacity	Same as Low	Same as Low	Same as Low	Same as Low
Safety Challenges: Merging Lanes	Merging lanes sized to modern safety standards	Physical footprint of the highway will increase slightly	Same as Low	Same as Low	Same as Low	Same as Low
Congestion Challenges: Highway Lanes	To ease congestion on I-95 the design widens the highway from 3 lanes to 4.	Physical footprint of the highway will get wider in that section	Same as Low	Same as Low	Same as Low	Same as Low
Congestion Challenges: Broad Street Exit	Broad Street Exit is improved by creating more capacity and better traffic flow by adding lacking connections and eliminating the required U-turn on Broad Street	Additional ramps will need to be constructed with potential impacts to adjacent property	7th Street Extension over I-95 provides additional access to the Navy Yard and Port, reducing traffic volumes and improving operations at Broad Street exit	Additional physical footprint for the highway	7th Street Extension with ramps to I-95 provides additional access further reducing traffic volumes and improving operations at Broad Street exit	Additional physical footprint for the highway

Design Challenges	Low
Design Challenges	Differences from Existing	Tradeoffs
Safety Challenges: Shoulder Widths	Shoulder widths are increased	Physical footprint of the highway will get wider without adding additional lanes or capacity
Safety Challenges: Merging Lanes	Merging lanes sized to modern safety standards	Physical footprint of the highway will increase slightly
Congestion Challenges: Highway Lanes	To ease congestion on I-95 the design widens the highway from 3 lanes to 4.	Physical footprint of the highway will get wider in that section
Congestion Challenges: Broad Street Exit	Broad Street Exit is improved by creating more capacity and better traffic flow by adding lacking connections and eliminating the required U-turn on Broad Street	Additional ramps will need to be constructed with potential impacts to adjacent property

Design Challenges	Medium
Design Challenges	Differences from Low	Tradeoffs
Safety Challenges: Shoulder Widths	Same as Low	Same as Low
Safety Challenges: Merging Lanes	Same as Low	Same as Low
Congestion Challenges: Highway Lanes	Same as Low	Same as Low
Congestion Challenges: Broad Street Exit	7th Street Extension over I-95 provides additional access to the Navy Yard and Port, reducing traffic volumes and improving operations at Broad Street exit	Additional physical footprint for the highway

Design Challenges	High
Design Challenges	Differences from Medium	Tradeoffs
Safety Challenges: Shoulder Widths	Same as Low	Same as Low
Safety Challenges: Merging Lanes	Same as Low	Same as Low
Congestion Challenges: Highway Lanes	Same as Low	Same as Low
Congestion Challenges: Broad Street Exit	7th Street Extension with ramps to I-95 provides additional access further reducing traffic volumes and improving operations at Broad Street exit	Additional physical footprint for the highway

NEXT PREVIOUS HOME

Connectivity Challenges

Broad Street Interchange: As the primary entrance to the Navy Yard, the capacity of the Broad Street Interchange potentially limits future expansion.
Additional Access: Existing connections to PhilaPort and the Stadium District are also limited in capacity as development and vehicle demands increase.

Multimodal Challenges

Pedestrian/Bicycle: Current layout of Broad Street is lacking pedestrian and bicycle connections on the east side of the street due to conflicts with existing I-95 ramps
Transit: Lack of dedicated transit lanes forces transit to share roadway with all vehicles and limits access to the Navy Yard.

NEXT PREVIOUS

LOW

MEDIUM

HIGH

Design Challenges	Low		Medium		High
Design Challenges	Differences from Existing	Tradeoffs	Differences from Low	Tradeoffs	Differences from Medium	Tradeoffs
Connectivity Challenges: Broad Street Exit	Broad Street Exit is improved by creating more capacity and better traffic flow by adding lacking connections and eliminating the required U-turn on Broad Street	Improvements help, but do not fully meet the anticipated traffic demand by 2045	Same as Low	Same as Low	Same as Low	Same as Low
Connectivity Challenges: Additional Access	Additional ramps at Pattison would provide access to PhilaPort and Stadium District	Additional ramps will need to be constructed with potential impacts to adjacent property	Additional access to Navy Yard and PhilaPort added by extending 7th Street over I-95	7th Street Extension has no ramps or access to I-95, has to be on structure over existing railway yards	New interchange with I-95 created at the 7th Street extension	Additional ramps and connections have to be constructed on structure over existing railway yards
Multimodal Challenges: Pedestrian/Bicycle	Pedestrian and bicycle connections are added to both sides of Broad Street	Additional traffic signal phases need to be incorporated into the design	7th Street Extension over I-95 provides additional route for pedestrian and bicycle access to Navy Yard and PhilaPort	Additional traffic signal phases in Low Build can be improved due to reduced traffic volumes at Broad Street interchange	Same as Medium	Same as Medium
Multimodal Challenges: Transit	Reconfigured Broad Street alignments provides flexibility of lane use, potentially allowing for transit use	---	Additional access provides another way for transit to access the Navy Yard	Dedicated lanes would create a wider roadway	Same as Medium	Same as Medium

Design Challenges	Low
Design Challenges	Differences from Existing	Tradeoffs
Connectivity Challenges: Broad Street Exit	Broad Street Exit is improved by creating more capacity and better traffic flow by adding lacking connections and eliminating the required U-turn on Broad Street	Improvements help, but do not fully meet the anticipated traffic demand by 2045
Connectivity Challenges: Additional Access	Additional ramps at Pattison would provide access to PhilaPort and Stadium District	Additional ramps will need to be constructed with potential impacts to adjacent property
Multimodal Challenges: Pedestrian/Bicycle	Pedestrian and bicycle connections are added to both sides of Broad Street	Additional traffic signal phases need to be incorporated into the design
Multimodal Challenges: Transit	Reconfigured Broad Street alignments provides flexibility of lane use, potentially allowing for transit use	---

Design Challenges	Medium
Design Challenges	Differences from Low	Tradeoffs
Connectivity Challenges: Broad Street Exit	Same as Low	Same as Low
Connectivity Challenges: Additional Access	Additional access to Navy Yard and PhilaPort added by extending 7th Street over I-95	7th Street Extension has no ramps or access to I-95, has to be on structure over existing railway yards
Multimodal Challenges: Pedestrian/Bicycle	7th Street Extension over I-95 provides additional route for pedestrian and bicycle access to Navy Yard and PhilaPort	Additional traffic signal phases in Low Build can be improved due to reduced traffic volumes at Broad Street interchange
Multimodal Challenges: Transit	Additional access provides another way for transit to access the Navy Yard	Dedicated lanes would create a wider roadway

Design Challenges	High
Design Challenges	Differences from Medium	Tradeoffs
Connectivity Challenges: Broad Street Exit	Same as Low	Same as Low
Connectivity Challenges: Additional Access	New interchange with I-95 created at the 7th Street extension	Additional ramps and connections have to be constructed on structure over existing railway yards
Multimodal Challenges: Pedestrian/Bicycle	Same as Medium	Same as Medium
Multimodal Challenges: Transit	Same as Medium	Same as Medium

NEXT PREVIOUS HOME

Socioeconomic Challenges

Economic Growth: The Navy Yard, PhilaPort and Stadium District are regionally significant economic drivers that have planned growth that will impact traffic needs

Cultural Challenges

FDR Park: FDR Park was added to the National Register of Historic Places in 2000 and has recently completed a master plan to reimagine the historic Olmstead designed park.

Natural Resource Challenges

FDR Park: Proximity of FDR Park to Broad Street Interchange
Floodplains/Emergency Management: Land adjacent to the Broad Street Interchange is in the 100-year floodplain and susceptible to flooding during major storm events

PREVIOUS HOME

LOW

MEDIUM

HIGH

Design Challenges	Low		Medium		High
Design Challenges	Differences from Existing	Tradeoffs	Differences from Low	Tradeoffs	Differences from Medium	Tradeoffs
Socioeconomic Challenges: Economic Growth	Broad Street Interchange is improved by creating more capacity and better traffic flow by adding lacking connections. Two new ramps to I-95 added at Pattison Avenue.	Improvements help, but do not fully meet the anticipated traffic demand by 2045, possibly limiting growth	Additional access to Navy Yard and Port added by extending 7th Street over I-95.	7th Street Extension has no ramps or access to I-95, has to be on structure over existing railway yards. Limited impact to Stadium District.	New interchange with I-95 created at the 7th Street extension provides additional access to Navy Yard, PhilaPort, and the Stadium District	Same as Low
Cultural Challenges: FDR Park	Improved multimodal connections at the Broad Street Interchange strengthen the connection between FDR park and the Navy Yard	Proposed ramps and existing highway alignment will continue to occupy the southern edge of the historic park.	Same as Low	Same as Low	Same as Low	Same as Low
Natural Resource Challenges: FDR Park	Stormwater Management Practices would be used adjacent to FDR Park to maximize the capture of stormwater runoff	Does not directly address floodplain issues in the Park	Same as Low	Same as Low	Same as Low	Same as Low
Natural Resource Challenges: Floodplains/Emergency Management	Reconfigured Broad Street Interchange and ramps at Pattison Avenue serve as primary emergency routes during flooding events.	The City Street connections, and adjacent private land are still susceptible to flooding without additional mitigation	Additional access to Navy Yard and PhilaPort added by extending 7th Street over I-95 can function as emergency routes during flooding events.	Same as Low	New interchange with I-95 created at the 7th Street can function as emergency routes during flooding events.	Same as Low

Design Challenges	Low
Design Challenges	Differences from Existing	Tradeoffs
Socioeconomic Challenges: Economic Growth	Broad Street Interchange is improved by creating more capacity and better traffic flow by adding lacking connections. Two new ramps to I-95 added at Pattison Avenue.	Improvements help, but do not fully meet the anticipated traffic demand by 2045, possibly limiting growth
Cultural Challenges: FDR Park	Improved multimodal connections at the Broad Street Interchange strengthen the connection between FDR park and the Navy Yard	Proposed ramps and existing highway alignment will continue to occupy the southern edge of the historic park.
Natural Resource Challenges: FDR Park	Stormwater Management Practices would be used adjacent to FDR Park to maximize the capture of stormwater runoff	Does not directly address floodplain issues in the Park
Natural Resource Challenges: Floodplains/Emergency Management	Reconfigured Broad Street Interchange and ramps at Pattison Avenue serve as primary emergency routes during flooding events.	The City Street connections, and adjacent private land are still susceptible to flooding without additional mitigation

Design Challenges	Medium
Design Challenges	Differences from Low	Tradeoffs
Socioeconomic Challenges: Economic Growth	Additional access to Navy Yard and Port added by extending 7th Street over I-95.	7th Street Extension has no ramps or access to I-95, has to be on structure over existing railway yards. Limited impact to Stadium District.
Cultural Challenges: FDR Park	Same as Low	Same as Low
Natural Resource Challenges: FDR Park	Same as Low	Same as Low
Natural Resource Challenges: Floodplains/Emergency Management	Additional access to Navy Yard and PhilaPort added by extending 7th Street over I-95 can function as emergency routes during flooding events.	Same as Low

Design Challenges	High
Design Challenges	Differences from Medium	Tradeoffs
Socioeconomic Challenges: Economic Growth	New interchange with I-95 created at the 7th Street extension provides additional access to Navy Yard, PhilaPort, and the Stadium District	Same as Low
Cultural Challenges: FDR Park	Same as Low	Same as Low
Natural Resource Challenges: FDR Park	Same as Low	Same as Low
Natural Resource Challenges: Floodplains/Emergency Management	New interchange with I-95 created at the 7th Street can function as emergency routes during flooding events.	Same as Low

Please provide any general comments on the following Concepts:

Low

Medium

High

Any additional general comments on the CSP Master Plan:

Thank you for submitting your comments. Please click the button below to return to the beginning of the presentation.

HOME

BROAD STREET INTERCHANGE LANDING PAGE

BROAD STREET INTERCHANGE LANDING PAGE

BROAD STREET INTERCHANGE

Summary of Design Concepts

BROAD STREET INTERCHANGE

Conceptual Design Process

BROAD STREET INTERCHANGE

Video of Design Concepts

BROAD STREET INTERCHANGE

Low

BROAD STREET INTERCHANGE

Medium

BROAD STREET INTERCHANGE

High

Design Concepts Impact on Safety and Congestion

Safety Challenges

Congestion Challenges

Design Concepts Impact on Safety and Congestion

Design Concepts Impact on Connectivity and Multimodal Services

Connectivity Challenges

Multimodal Challenges

Design Concepts Impact on Connectivity and Multimodal Services

Design Concepts Impact on Socioeconomic, Cultural, and Natural Resources

Socioeconomic Challenges

Cultural Challenges

Natural Resource Challenges

Design Concepts Impact on Socioeconomic, Cultural, and Natural Resources

BROAD STREET INTERCHANGE

Feedback on Design Concepts.

BROAD STREET INTERCHANGE

Feedback on Design Concepts.