by philipmartin
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Railroad Forums
Moderator: AlexC
Suburban Station wrote:Looking at the geography it would seem to make more sense to operate it over the Walt Whitman with a terminus at broad and Pattison. It's my understanding that patco needs a better terminal in philadelphia to operate increased headways.
the sarge wrote:Except there is no way a rail line could run on the Walt Whitman.The structure is incapable of handling light rail vehicles?
Suburban Station wrote:Looking at the geography it would seem to make more sense to operate it over the Walt Whitman with a terminus at broad and Pattison. It's my understanding that patco needs a better terminal in philadelphia to operate increased headways.
Suburban Station wrote:The structure is incapable of handling light rail vehicles?
the sarge wrote:Yes, it's incapable of handling in regards to the deck stiffness, which in comparison to the Benny, is very low. In general, a bridge has to be designed to handle railroad loading and this is the case for suspension bridges 100% of the time. Look at pictures of suspension bridges that were built to handle rail loads like the Benny, Manhattan, San Fran -Oak Bay bridge. The truss systems implemented for those decks are for providing higher stiffness. You can compare and see the difference between these bridges and the single deck ones only built for vehicle traffic - even the post "Galloping Girtie" bridgesAlthough much further downriver from Philadelphia (in Chester) and light/heavy rail service being very unlikely in that area, would the Commodore Barry Bridge be capable of supporting a rail line??? Unlike the Walt Whitman Bridge, the Commodore Barry Bridge is a cantilever bridge (not suspension) and appears more "solid".
Suburban Station wrote:The structure is incapable of handling light rail vehicles?
SubwayTim wrote:Although much further downriver from Philadelphia (in Chester) and light/heavy rail service being very unlikely in that area, would the Commodore Barry Bridge be capable of supporting a rail line??? Unlike the Walt Whitman Bridge, the Commodore Barry Bridge is a cantilever bridge (not suspension) and appears more "solid".
SubwayTim wrote:While we are throwing out crazy ideas, why don't we tunnel the Broad Street Line under the river via Pattison Lower Level, add a deep Navy Yard station, and extend service to Glassboro?the sarge wrote:Yes, it's incapable of handling in regards to the deck stiffness, which in comparison to the Benny, is very low. In general, a bridge has to be designed to handle railroad loading and this is the case for suspension bridges 100% of the time. Look at pictures of suspension bridges that were built to handle rail loads like the Benny, Manhattan, San Fran -Oak Bay bridge. The truss systems implemented for those decks are for providing higher stiffness. You can compare and see the difference between these bridges and the single deck ones only built for vehicle traffic - even the post "Galloping Girtie" bridgesAlthough much further downriver from Philadelphia (in Chester) and light/heavy rail service being very unlikely in that area, would the Commodore Barry Bridge be capable of supporting a rail line??? Unlike the Walt Whitman Bridge, the Commodore Barry Bridge is a cantilever bridge (not suspension) and appears more "solid".
Suburban Station wrote:The structure is incapable of handling light rail vehicles?
R3 Passenger wrote:While we are throwing out crazy ideas, why don't we tunnel the Broad Street Line under the river via Pattison Lower Level, add a deep Navy Yard station, and extend service to Glassboro?
Someone pass the tequila this way, please?
Suburban Station wrote:Thanks for the explanation sarge.I think he meant tunnel to City then tie into the existing ROW from there.
Tunneling to glassboro? Wouldn't it make more sense to tunnel patco to university city?
ekt8750 wrote:I was alluding to PATCO's shared history with the Broad Street Line peppered with some sarcasm and unrealistic pipe dreams.Suburban Station wrote:Thanks for the explanation sarge.I think he meant tunnel to City then tie into the existing ROW from there.
Tunneling to glassboro? Wouldn't it make more sense to tunnel patco to university city?
nomis wrote:Heck, tunneling from Pattison to Woodbury may be the only way Glassboro sees any type of rail transit service. Conrail shared assets is currently imploding under the increased amount of trains along that route to Woodbury, and container traffic is slated to start in SJ once PANAMAX is completed.Yes, between the increase in freight traffic, the impact of the new high-tension wires on the R.O.W., and the planned grade separation planned along the west side of I-676 due to opposition to in-street operation on Haddon Avenue near Cooper Hospital, I have serious concerns about the additional costs associated with the DLRT system proposal. With no money in NJ transportation coffers, it remains to be seen how it will happen, despite previous comment from several political leaders.