Frankston line Grade Seperations

 
  A hat with a toucan 2:ele Junior Train Controller

So, Frankston line huh? It has the most level crossings out of any of the lines that are being removed with 11 of them planned.

In fact as we speak, 3 of them are being removed right now!

These three are:
North road Ormond
Mckinnon road Mckinnon
Centre road Bentleigh

These two have had some Geotechnial works done:
Charman road Cheltnam
Station street Carrum

And these are the rest:
Balacombe road Mentone?
Edithvale road Edithvale
Station street Bonbeach
Eel race road Seaford
Seaford road Seaford
Overton road Frankston


My main question is, how are they going to remove half these with the high water table in that particuler area?

Oh yeah, Im really surprised Glenhuntly road did not make it on here, its one of the few tram squares left.

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  Myrtone Chief Commissioner

Location: North Carlton, Melbourne, Victoria
Although the Frankston line has more level crossings that are due to be grade separated than has any other line, it is not a wholesale removal of level crossings on even the inner section of the line. If all level crossings between Caulfield and Cheltnam were removed, then it would be a wholesale level crossing removal and allow more short working services.
  SPSD40T2 Chief Commissioner

Location: Platform 9-3/4 and still waiting !!
As it happens  I live in Bonbeach..I know only too well the problems and issues  re these:
Station street Bonbeach
Eel race road Seaford
Seaford road Seaford
Station street Carrum

About the only one with even half a hope , imho,  of being feasible is the Seaford rd locale... But they'll cause one hell of a traffic pain the behind in doing it.

Much of the problem regarding  the Bonbeach/Carrum  Station st crossings  is to do with the traffic paths. What this kneejerk solution seems to ridiculously overlook is that much of the traffic  in this locale is simply trying to get across the river. The ONLY two places you can cross the river  ( by car )  in the whole area are Gladesville Blvd   and the Nepean Hwy.  So what happens of course is a lot of traffic  is chicaned into/onto these rail crossings.

A lateral solution  is to build a bridge reconnecting Station st across the Patterson River. The existing crossing could be left there as both are still  handy but with better sequencing of lights ( currently sux big time ) a lot of traffic would just continue their journeys without worrying about crossing over the tracks

The cost to deal with the water table would be extremely high. The engineering required is far from a simple bridge tunnel etc for the road rail interchange.

edit..spelling
  Valvegear Oliver Bullied, CME

Location: Richmond Vic
The cost to deal with the water table would be extremely high. The engineering required is far from a simple bridge tunnel etc for the road rail interchange.
"SPSD40T2"
Quite correct. Wellpoint dewatering would be required, and experience shows that seaside locations can be effectively managed this way. Sydney Airport runway 16L/34R, and the Dawesville Cut in WA are two examples of large dewatering jobs.by the sea. However, it won't come cheaply.
  SPSD40T2 Chief Commissioner

Location: Platform 9-3/4 and still waiting !!
The cost to deal with the water table would be extremely high. The engineering required is far from a simple bridge tunnel etc for the road rail interchange.
Quite correct. Wellpoint dewatering would be required, and experience shows that seaside locations can be effectively managed this way. Sydney Airport runway 16L/34R, and the Dawesville Cut in WA are two examples of large dewatering jobs.by the sea. However, it won't come cheaply.
Valvegear
The thing that really gets me , and Im awaiting a reply from the local member on this very point , is that changing the nature of how the road and rail interplay at these particular locations   i.e  Bonbeach and Carrum just either side of the river doesnt actually address the problem it just changes the the conduit so to speak.. You are still throwing huge numbers of cars and trucks onto the Nepean needlessly.

For mine it begs the question , Is it really necessary to do the crossings in order to solve the problem? To me the answer is plainly NO. The answer is to allow cars to cross the river.
  jdekorte Deputy Commissioner

Location: Near Caulfield Station
Guys, first, please learn to spell station names - it's Cheltenham!!!

I believe the challenging geology has been mentioned in the premier's press release - proximity to Port Phillip Bay being one of them.  No doubt there is a solution but it will take time and planning.  Maybe they will learn something from doing the current ones (North Rd/McKinnon Rd/Centre Rd) which are all within the sandbelt and are criss-crossed by underground streams and drains.

I also believe that the Glenhuntly/Neerim crossings are to be regarded as special cases not so much for Glenhuntly being a tram crossing, but also for challenging geology and local opinions.  The whole area north of Glenhuntly used to be a swamp, part of the drainage basin for Elster Ck (Elwood Canal).  This makes the water table under the area extremely high.  Caulfield Racecourse is built on the location of part of said swamp.  Also, apparently the locals don't want a rail over road option as it would ruin the neighbourhood, and the grades would not be ideal for the Long Island goods train. Again, I'm sure there might be a solution but it will be exceedingly expensive.
  historian Deputy Commissioner

From a road traffic point of view, Glenhuntly Road would have to be a low priority - it carries little traffic. This is because Glenhuntly Rd ends about a kilometre to the east, has a speed limit of 40 km/h over most of the western half, and to really slow traffic down, is narrow with a tram service its entire length. To be honest, the traffic queues at McKinnon Rd seem worse than Glenhuntly Rd, even given the slow speed trains cross over the tram tracks.

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