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martin607

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Everything posted by martin607

  1. I know that MBTA has excluded trolleybuses from its thinking for both North Cambridge and the Silverline but that doesn't make the policy right. I will post the recent MBTA report on their electric bus pilot in the MBTA thread. To avoid further thread drift, I'll just make general comments - In Motion Charging as on Dayton's new trolleybuses reduces the need for overhead wiring - The overhead wiring maintence cost on a cost per bus mile basis is trivial - The installations for battery buses are also expensive. - for intensive bus operations, trolleybuses are cost competitive. A recent study in Berlin showed that.
  2. But Kiepe could do more promotion in Boston and Philadelphia. And there's no reason for not looking for new starts. With wiring only needed for 30% of a route. battery-trolleybuses are cost-competitive with battery buses for heavy duty applications.
  3. I wonder what is going to happen to the Kiepe factory now this order has been completed. I get frustrated with Kiepe, because they have a good product but they don't seem to do any promotion for the concept of battery-trolleybuses with in motion charging as an alternative to straight battery buses.
  4. Depends what we each mean by temporary. Given the state of the Covid crisis, this extension could well last into 2021, so that goes beyond temporary for me. you've got every right to disagree, though
  5. Thanks. It's good to see the battery function being used for a permanent (?) extension, rather than just for road works detours etc.
  6. Thanks for the interesting update but would the 3 and 20 use the short turn you described rather than left onto Pender, right to Columbia and right onto Hastings and back to Main?
  7. I agree with the previous two comments. When we talk about dewirements, we mean unintended events caused either by a fault in the wiring (e.g. a loose hangar or a defective switch) or by driver error such mis-positioning the bus in relation to the wiring. There was no need to over-dramatise this scene; everything was working as it should. All buses proceeded calmly through the dead section. No damage was caused to the overhead wires by flying poles etc.
  8. From a Twitter report, it seems that the extension of the 30 to Chrissy Field in the Presidio began on 19th September. Even more interestingly, they are using the XT60 trolleybuses and using battery power on the unwired extension. Time for some photos and videos, guys.
  9. Not surprising given the pandemic. But given the resulting financial crisis, I wonder whether there will be any rethink about California's ambitious plans for battery buses. If service is cut to the bone for the next few years, some systems may be able to get by with the newest members of their existing fleets and the need for new buses may be limited.
  10. Article in Czech about the closure. https://www.cs-dopravak.cz/v-moskve-skoncily-trolejbusy-zrizena-bude-jedna-retrolinka/ Best photo in the article is one of a BKM 321 waiting to return to the depot for the last time (photo credit Alexandr Lezenko). To be clear, we are not talking about ancient boneshakers. By July the trolleybus fleet was down to about 380 and of these about 50 were only three years old and the rest were seven to eight years old i.e. at about mid-life. The last six routes closed without prior announcement on 24 August (last runs early hours of 25th). 5 of these were converted to diesel and only one to battery electric buses. But the battery electric buses can't cope with the heavily loaded routes. Next day there were line ups at charging stations and ex-trolleybus route M4 was reduced from every 3 minutes to every 30 minutes. Since the Mayor of Moscow began his destruction of the system in 2016, the fleet has been reduced to nil but only 600 battery buses have been ordered. Moreover many battery buses have in fact been put on diesel routes and 80% of trolleybus service has in fact been replaced by diesel. There is still a lot of wiring up outside of the central core and it will take quite a while to remove it. Strangely, there didn't seem to be much effort since 2016 to remove wiring over closed routes and sometimes brand new intersections were built for routes that weren't coming back. But demolition may now speed up.
  11. Any reports/photos of the return of the XT60s, particularly to the 30? Have they started running on battery to Chrissy field?
  12. Sorry, I can't track it down at the moment. But presumably if there are any options available, they would need to be exercised fairly soon before the current production run ends.
  13. It's interesting to note the contrast between the single motor version, which uses a permanent magnet motor (i.e. synchronous) and the duopower version which uses induction motors (i.e. asynchronous) in the hubs. Anybody knows who supplies the motors to Proterra? For anyone interested, this is an illustration of an electric portal axle made by ZF. It can be used for hybrids, battery or trolleybus. One big advantage is it enables continuous low floor gangway, rather than a step up at the back of the bus. https://www.zf.com/products/en/buses/products_40128.html
  14. Here's an interesting article from a European website. Two points of note: that the buses have such large batteries and that they have opted for dual electric motors. Is 510 h.p. really necessary? http://www.sustainable-bus.com/news/edmonton-electric-buses-proterra-ets-abb/
  15. I read somewhere that there may be an option to increase to up to 75 NexGen. Is this true and, if so, is it likely given the Covid 19 crisis?
  16. Have you got a source for this? Which routes do you think? I guess the 3 would be the most likely to be affected by construction of Mount Pleasant Station, while the 8 already cuts the corner using Kingsway.
  17. May I congratulate you on your video - it's one of the best, particularly because it includes so many street scenes. I suspect you did a lot of pre-planning of the shots that you wanted to take, so it turned out like a comprehensive record, not just a random assortment of snatches. Just one point from the commentary. Trips from Broadway-Commercial Skytrain to Granville are mostly extra service on the busiest central section of the route. The trolleybuses then did a round the block loop from Granville, W. 10th, Fir for layover and then back on to Broadway eastbound. Obviously the turn on to Granville is/was also used for trips going back to VTC but they are not the majority. Now if only Translink would retrofit some of the E40LFRs with modern Lithium Ion batteries, the 9 could still run as a trolleybuses using battery power over the middle section of the route.
  18. If someone is moving onto an unfamiliar route for the new sheet, don't the drivers get any route learning?
  19. Posted this a few hours ago in E Sightings. "The first trolleybus on the 41 this new sheet is 2201, departing 41st and Oak to Joyce Station at 04.11"
  20. The first trolleybus on the 41 this new sheet was 2201, departing 41st and Oak for Joyce station at 04.11
  21. One advantage of the lithium iron phosphate chemistry is that it doesn't use cobalt. On the other hand if you want batteries that can handle a large number of discharge/recharge cycles lithium titanite oxide batteries are better. Each battery chemistry has its advantages and disadvantages in areas like: use of scarce or conflict minerals; speed of charging; effect of temperature on charging; number of cycles over a lifetime; fire risk etc etc.
  22. I seem to remember when the evaluation of the fleet renewal took place, Metro claimed that equipping the new trolleybuses with auxiliary batteries would mean the end of weekend dieselisation. Concern about the battery replacement cost is ridiculous. It's probably less the 4% of the total cost of the bus. It was specified by the procurement team to be used- if you don't want to use it, why spend the extra money in the first place? If you follow this logic why not curb diesel bus mileages to avoid expensive mid-life overhauls, drivetrain replacement etc? I hadn't realised about the complete switch off of the substations. It seems that at heart the diesel mafia still run the show.
  23. Don't forget the report was prepared months ago. I was speculating, based on the double price, that it would be at Marine Drive Station and maybe it was a super powered version rated a 1MW (i.e. 1,000 kW) to give a flash boost mid-trip, rather than the regular version which is presently 450 kW maximum. But your suggestion of Knight sounds more likely.
  24. One piece of information in the Low Carbon Fleet Strategy report relates to the operation on route 100. There is proposal to build a third charging station but the report doesn't say where it will be. The budgeted cost is $2m, which is twice the reported cost of the original two charging stations. Translink officials have always said the charging stations cost $1m each. Anyone got an idea where the 3rd charger might be sited? The high price might indicate that either the unit is special in some way or the location is difficult.
  25. martin607

    BYD "E-Bus"

    Could you give some details, please?
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