Re: Trackless trams for Melbourne
  espee8800

So why is all this knowledgeable discussion also in The Age letters or
somewhere similar? No good writing to the politicians, they will just
ignore it all.

On Mon, 3 May 2021, 13:27 TP, historyworks@...> wrote:

> The CAF AXL for Stockholm is partly high floor - over the end (swivelling)

> bogies. To get the shorter length they would use only the two end modules

> with cabs and I imagine put a bogie under the other end of one module to

> support the tram in the middle. CAF doesn't have much experience with this

> type of tram. I presume UGL's involvement is to make local assembly

> possible. The batteries don't make sense (except for emergency propulsion)

> when the whole system is covered by wires. It's almost like they have to

> have the latest environmental fashion accessory, even when it's not

> particularly environmental.

>

> Tony P

>

> On Monday, 3 May 2021 at 13:03:49 UTC+10 Mal Rowe wrote:

>

>> On 02/05/2021 10:19, TP wrote:

>>

>> That's a terribly confused article and seems to be a grab bag of all the

>> issues that have been discussed over recent years. Is it about new trams or

>> new electric buses? It leaps from one to the other.

>>

>> Agreed it's a shambolic report - perhaps the reporter was under pressure

>> to fill space in the Sunday Age!

>>

>> However, there is some apparently 'real' information:

>>

>> - Planned quantity is 100 trams with delivery starting in 2025

>> (already known).

>> - Shortlisted tenderers will be Alstom and a consortium of CAF and

>> UGL.

>> - Length will be 25m - just 1.4m longer than a B class.

>> - They will have onboard energy storage using batteries (already

>> known)

>>

>> As Tony says, the trams are a bit shorter than new tram norms - however,

>> new tramways don't have parallel tram lines running only 500m to 1km apart

>> as Melbourne does in the south east sector. I'm assuming that the aim is

>> to get new trams without significant depot expansion.

>>

>> The comments in the piece about weight and curves make no sense - the Es

>> can run anywhere in Melbourne and while I am aware of curves being eased, I

>> can't bring to mind any bridge strengthening.

>>

>> I assume that CAF will offer their Urbos AXL - their rotating bogie

>> option, but it's not clear to me how they would produce a shorter version.

>>

>> See: https://gryphon4.environdec.com/system/data/files/6/9691/epd297.pdf

>> for the Stockholm version.

>>

>> Mal Rowe - noting that the latest E (6095) still sports a BOMBARDIER

>> badge.

>>

>>

>> --

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