Miscellaneous Topics on Buses
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Originally posted by SMB1333T:
so 161 222 285 no add yet? anyone know which bus in?
I believe each must have got a WEG.
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BVG beside custom order for Scania Citywide DD 2 axles 11.4m has also order VDL DLF 2 axles 11.4m 2 staircase DD..Hmm i hope HK will order the tri axles version in future
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The legend who talked and walked his talk !!! We will never see a visionary like him in our lifespan !!! Rest in peace MM Lee
Singapore is what it is today thanks to you. Singapore is a rich and successful country thanks to you. I hope the youth in this generation realize your efforts and hard work to make this happen.
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A close SMRT personnel told me that Mandai depot with 550 capacity will eventually replace Wldep/Wlbp..How is that possible?
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Originally posted by carbikebus:
A close SMRT personnel told me that Mandai depot with 550 capacity will eventually replace Wldep/Wlbp..How is that possible?
He might have wanted to say KJDEP and said WLDEP instead.
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Thats is what im thinking too cause i know LTA did mentioned about Woodlands integrated Depot in future also..
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Hello guys, first time posting here.
Would like to ask if anyone still remembers the exact routes plied by 125 before its merger with 20, and also the exact bus route for ex TIBS bus 5 from bukit panjang - Geylang lor 1. Have been thinking real hard on all these routes I've seen when I was still a kid, but searched the forum to no avail :(
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Originally posted by sgxiaobusguy:
Hello guys, first time posting here.
Would like to ask if anyone still remembers the exact routes plied by 125 before its merger with 20, and also the exact bus route for ex TIBS bus 5 from bukit panjang - Geylang lor 1. Have been thinking real hard on all these routes I've seen when I was still a kid, but searched the forum to no avail :(
sv125 go from st michaels to Shenton way as peak hour service before merger..
go via balestier road, jalan besar, ophir road, beach road to shenton way..
ex-TIBS 5 use upper bukit timah road, dunearn road, sixth ave, then holland road, holland ave, c'wealth ave, margaret dr, alexandra road, lower delta road, Jalan bukit merah, kampong bahru, eu tong sen st and victoria street.
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Slightly OT, but here's my comparision on ZF and Voith:
ZF:
Jerky gearshifts between 1st, 2nd and 3rd gear due to falling revs (rpms), but generally uniform and smooth acceleration after 3rd gear. This makes it suitable for many routes. Smoother braking also is ensured as the gearbox can shift gears efficiently back to 1st gear. Braking may still be jerky though.
Voith:
Smooth transition when changing gears (possibly due to DIWA making up for two less gears), but mostly jerky braking as the gearbox cannot change back to 1st gear quickly. Sometimes, the pick-up may also be affected, although it gradually allows the bus to travel at high speed with ease after around 5-10 seconds. This makes it better for highway routes, where a higher speed is needed for journeys.
Conclusion:
I would say that each gearbox has its own advantages. ZF is more versatile, but Voith should be utilised for highway routes. Both are okay for urban routes with many stops, though ZF is better at handling smooth gearshifts when stopping and going. But, it does depend a lot on the BC to handle the bus to make it as comfortable as possible. Very few BCs actually know how to handle a bus with Voith gearbox with smoothness and speed. BCs are generally more familiar with ZF gearbox, but may need more training to drive smoothly.
Buses that should get ZF:
- Volvo B9TL Wrights = Smoother acceleration and better braking.
- Mercedes-Benz Citaro = Same as Wrights.
Buses that should get Voith:
- MAN NL323F = Strangely, the Voith gearbox suits the engine of the MAN better.
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MAN is robust,I tend to agree that Voith suit MAN best!SBST not problem of gearbox but their 1st gear restriction is just sucks!!
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Originally posted by 23ispolo:
Slightly OT, but here's my comparision on ZF and Voith:
ZF:
Jerky gearshifts between 1st, 2nd and 3rd gear due to falling revs (rpms), but generally uniform and smooth acceleration after 3rd gear. This makes it suitable for many routes. Smoother braking also is ensured as the gearbox can shift gears efficiently back to 1st gear. Braking may still be jerky though.
Voith:
Smooth transition when changing gears (possibly due to DIWA making up for two less gears), but mostly jerky braking as the gearbox cannot change back to 1st gear quickly. Sometimes, the pick-up may also be affected, although it gradually allows the bus to travel at high speed with ease after around 5-10 seconds. This makes it better for highway routes, where a higher speed is needed for journeys.
Conclusion:
I would say that each gearbox has its own advantages. ZF is more versatile, but Voith should be utilised for highway routes. Both are okay for urban routes with many stops, though ZF is better at handling smooth gearshifts when stopping and going. But, it does depend a lot on the BC to handle the bus to make it as comfortable as possible. Very few BCs actually know how to handle a bus with Voith gearbox with smoothness and speed. BCs are generally more familiar with ZF gearbox, but may need more training to drive smoothly.
Buses that should get ZF:
- Volvo B9TL Wrights = Smoother acceleration and better braking.
- Mercedes-Benz Citaro = Same as Wrights.
Buses that should get Voith:
- MAN NL323F = Strangely, the Voith gearbox suits the engine of the MAN better.
Some remarks (i have already commented on this in an earlier post):
1. torsion dampener quality affects upshifts and downshifts. The Ecolife units deliver remarkable upshifts and downshifts across the gears with minimal jerk/surge thanks to improved torsion dampeners (over the Ecomats). While falling rpms are a problem, it is the disparity in torque across the falling rpm which contributes to the jerk as well.
2. in all transmissions, shifting back to gear 1 as part of engine braking does not occur as a rpm surge from 2->1 will damage the transmission /engine (recall that 388S has a tendency to 2->1 on slopes). Across all transmissions, engine braking drops from the current gear to at most 2 or 3 for maximal effectiveness.
to add - most transmissions have the gears 'follow' the braking such that the best gear is selected should on-demand acceleration be required. while braking is generally done by the hydrodynamic retarder (integrated into the Ecolife/Ecomat/Voith), some operators have had the EBS configured such that the transmission may agressively downshift to provide the best engine retardation for the speed.
3. the fewer gear changes may allow Voiths to reach speed after about 10-15 seconds, but do not forget the amount of tradeoff at the lower end.
4. If you have not taken the B3 ZF A22s, they actually povide a much better ride than the B1/B2 ones due to the lack of 'surging' as the engine exceeds 1400rpm, and not to mention the much less agressive acceleration from halt. I cannot agree that the Voith suits the A22s best because the engine is consistently pushed past 1400rpm by drivers who need acceleration at the lower end. To push the D2066 engine past 1400rpm is a reciepe for high fuel consumption!
note - to my knowledge, I have only seen the B9TLs demonstrate full engine braking on downhill slopes; the significantly different roar of the engine (ontop of the retarder) is an indication that the VEB (volvo engine brake, google it) is activated. more often would you see VEB or similar mechanisms activated on long-haul trucks than citybuses due to their speed and tonnage.
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just wanna mention something, before it continues further.
apparently, information are disappearing (deleted/removed) from the wikipedia pages.
^the international wikipedia,not the local one.
at first, it was the bus interchange berth information.
now, even the bus model lists on SMRT and SBS Transit pages are removed.
in my opinion, I feel that if we remove all these content, what's the point of having the wikipedia pages?
I am sure the people behind this removal of content would read this somehow.
Can I just make one simple request?
Request:
put back the content that has been removed.
Thanks.
I know the content on wikipedia is not always accurate, but that does not give anyone the right to remove content.
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Update:
41: ETT revision on 13/04/15
[4 trips will be added âž² Weekday] [81 trips âž² 85 trips]
[8 trips will be removed âž² Sunday/Public Holiday] [82 trips âž² 74 trips]
[1 trip will be removed âž² Saturday/Eve of X'Mas, New Year, Chinese New Year] [85 trips âž² 84 trips]285: ETT revision on 13/04/15
[21 trips will be added âž² Weekday] [119 trips âž² 140 trips]317: ETT revision on 13/04/15
[3 trips will be removed âž² Weekday] [102 trips âž² 99 trips]325: ETT revision on 13/04/15
[6 trips will be added âž² Weekday] [111 trips âž² 117 trips]334: ETT revision on 13/04/15
[7 trips will be added âž² Weekday] [150 trips âž² 157 trips] -
41 get another Citaro?
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Originally posted by TIB987K:
Update:
41: ETT revision on 13/04/15
[4 trips will be added âž² Weekday] [81 trips âž² 85 trips]
[8 trips will be removed âž² Sunday/Public Holiday] [82 trips âž² 74 trips]
[1 trip will be removed âž² Saturday/Eve of X'Mas, New Year, Chinese New Year] [85 trips âž² 84 trips]285: ETT revision on 13/04/15
[21 trips will be added âž² Weekday] [119 trips âž² 140 trips]317: ETT revision on 13/04/15
[3 trips will be removed âž² Weekday] [102 trips âž² 99 trips]325: ETT revision on 13/04/15
[6 trips will be added âž² Weekday] [111 trips âž² 117 trips]334: ETT revision on 13/04/15
[7 trips will be added âž² Weekday] [150 trips âž² 157 trips]Waseh 325 need so many trips meh?
The demand got so high?
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Originally posted by sbst191:
Waseh 325 need so many trips meh?
The demand got so high?
Not really. I see 325 often going empty even during peak hours. Instead should have added bus on 101.
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Originally posted by TIB987K:
Update:
41: ETT revision on 13/04/15
[4 trips will be added âž² Weekday] [81 trips âž² 85 trips]
[8 trips will be removed âž² Sunday/Public Holiday] [82 trips âž² 74 trips]
[1 trip will be removed âž² Saturday/Eve of X'Mas, New Year, Chinese New Year] [85 trips âž² 84 trips]285: ETT revision on 13/04/15
[21 trips will be added âž² Weekday] [119 trips âž² 140 trips]317: ETT revision on 13/04/15
[3 trips will be removed âž² Weekday] [102 trips âž² 99 trips]325: ETT revision on 13/04/15
[6 trips will be added âž² Weekday] [111 trips âž² 117 trips]334: ETT revision on 13/04/15
[7 trips will be added âž² Weekday] [150 trips âž² 157 trips]Didn't 285 also have few trips added last month??? Can expect 285 to get 2 DDs..??
325 might get a Citaro... 334 should get one DD from SLBP... 41 runtime adjustment?? I don't think there is need for fleet add yet.
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Originally posted by JurongWestresident:
just wanna mention something, before it continues further.
apparently, information are disappearing (deleted/removed) from the wikipedia pages.
^the international wikipedia,not the local one.
at first, it was the bus interchange berth information.
now, even the bus model lists on SMRT and SBS Transit pages are removed.
in my opinion, I feel that if we remove all these content, what's the point of having the wikipedia pages?
I am sure the people behind this removal of content would read this somehow.
Can I just make one simple request?
Request:
put back the content that has been removed.
Thanks.
I know the content on wikipedia is not always accurate, but that does not give anyone the right to remove content.
if you need your fix of bus models operated by the various operators, here's a page that could fufill that fix. (http://en.wikipedia.org/wiki/Bus_transport_in_Singapore)
the point of the wiki pages are to inform, and frankly, the disappearance of some of these information may actually be more beneficial than harmful. think about the people who could be misled by so much inaccurate, outdated information.
surely such inaccuracies dont warrant removal by people, but hey, at least they are doing some social service!
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Originally posted by SexyMichael:
if you need your fix of bus models operated by the various operators, here's a page that could fufill that fix. (http://en.wikipedia.org/wiki/Bus_transport_in_Singapore)
the point of the wiki pages are to inform, and frankly, the disappearance of some of these information may actually be more beneficial than harmful. think about the people who could be misled by so much inaccurate, outdated information.
surely such inaccuracies dont warrant removal by people, but hey, at least they are doing some social service!
Thanks for sharing with me the address to the other Wikipedia page. So, it was after all just a re-location. I thought it was some kind of vandalism.
Okay la. actually, consolidate everything to one single page is better. a clearer view of the types of bus models in Singapore.
Thanks for the clarification.
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Originally posted by JurongWestresident:
Thanks for sharing with me the address to the other Wikipedia page. So, it was after all just a re-location. I thought it was some kind of vandalism.
Okay la. actually, consolidate everything to one single page is better. a clearer view of the types of bus models in Singapore.
Thanks for the clarification.
frankly speaking, i dont think its a relocation; the information should have had been there for quite a while. and that said, its just a matter of time before someone's gonna have that page cleaned up, so do what you need to do
what leaves me terribly puzzled is this desire to have all the bus models in singapore on one, maybe two, page(s). its terribly puzzling quite simply because its a clusterf*** of information that does not accurately state if the model is: 1) in-service, 2) retired, 3) demonstrator. that aside, there are many more allegations that can be levelled against the page, not to mention potential for misinterpretation which could give rise to fastidious claims like "SBST plans to bring in so-many B5RLEHs within the next so-and-so years"!
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168 add 1 more bus from BN, SBS3879M...
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Originally posted by sbst191:
Waseh 325 need so many trips meh?
The demand got so high?
41 might get a Citaro,325 might get a split shift Citaro also,285 might get a split shift DD,334 also might get a full day DD and 317 to reduce a split Citaro
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SMB1301K to SMB1310J
(AP01 to AP10)
SMB1378P (AP11)
SMB1379L (AP12)
SMB1383Z (AP13)
SMB1384X (AP14)
SMB1496G (AP15)SMB3071K (AP90)
SMB3001M (AP91)
SMB3037K (AP92)
SMB3090E (AP93)
SMB3061P (AP94) -
Originally posted by TIB 585L:
SMB1301K to SMB1310J
(AP01 to AP10)
SMB1378P (AP11)
SMB1379L (AP12)
SMB1383Z (AP13)
SMB1384X (AP14)
SMB1496G (AP15)SMB3071K (AP90)
SMB3001M (AP91)
SMB3037K (AP92)
SMB3090E (AP93)
SMB3061P (AP94)AP what?Which service?
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Originally posted by carbikebus:
AP what?Which service?
Looks like 858