Gday All
Put the doors on unlock, push the button or get carried over
All but the stupid would soon learn,
This would save a lot of juice and coal
Cheers, Mick
On 24/07/2019 3:40 pm, 'Richard Youl' via TramsDownUnder wrote:
> From memory, I believe drivers have told me that on the E class and probably other newer cars the doors can be set by the driver to either Unlock or Open. Apparently to save time they choose to unlock the doors to avoid time wasted from dithering passengers banging at shut doors.
>
> Brisbane train passengers for very many years have had to push the door button to get on or off, and from Day 1 the same has applied with GC trams with negligible confusion. The tram doors close within about 10 seconds of the last passenger movement on a door by door basis. So wasted heat or cooling is lost outside.
>
> I’m sure that even the dimmest of passengers would learn the ropes if train and tram doors in all states were operated in the Unlock mode.
>
> Regards,
>
>
> OT. It has been a lovely 28 degrees outside my place for a while this afternoon, same as yesterday. What have you suckers been suffering down south today?😄
>
>
> On 24 Jul 2019, at 2:25 pm, Matthew Geier matthew@... mailto:matthew@sleeper.apana.org.au> wrote:
>
> On 24/7/19 12:30 pm, Greg King wrote:
>>
>> Hi Tony,
>>
>> Not yet, that will be next year in Prague. Have just been studying the different models available around the world. Sadly, it’s slim pickings when looking for a car that has rotating trucks. I still thnk the E is an excellent vehicle but is to hungry and, while the trams are supposedly solar powered now, they still have to build bigger or more substations where-ever they put the E’s.
>>
>>
> Isn't one of the power eaters on the E class is the monster air-conditioning ?
>
> Given it appears the average rider is too stupid to press a door open button (a problem Sydney has even worse), the cars have to have air conditioning that can cope with all the doors being opened at every stop. That's a lot of (wasted largely) cooling capacity.
>
> A Škoda with the same air conditioning rating will probably be similarly power hungry. Id be very surprised if there was much difference between the overhead voltage to tractive effort efficiency on a modern PMAC drive car no matter who made it. Car weight would be the leading factor in traction power consumption.
>
> Or you can take the Sydney IWLR route - don't specify the air conditioning at all, leave it to the manufacture who just puts on their usual cheap 'European' HVAC and the cars are like saunas 4 or more months of the year.
>
> (A friend snapped a shot last summer of an IWLR tram with a huge 40cm floor fan in the cab blasting air at the driver!)
>
>
>
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