Articulated Buses vs Double Deckers
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Do you mean comfort on the upper deck or lower deck? If upper deck you say comfortable on long trips then maybe you wrong, try taking 93 on a VO2x, and then the BC puts in full trottle, what a heck of a ride. VSO im not too sure, wikipedia says it got soft suspension, so maybe more comfortable. While taking 93 to Harbourfront, the circle line construction road there is the worst. Got alot bump then BC travels very fast, then see someone flag bus then suddenly jam brakes. Then my mother say" wah ai this bus driver anyhow drive sia"Originally posted by carbikebus:Articulate buses/Bendy
Advantages
owerful acceleration,Faster boarding/Alighting/More paxs,More standees.Turning radius is excellent over rigid buses and DDs.
Disadvantages:Not good for long journey like 45 mins above.When the SL beats the lights he had to double worry whether the trailer had over the line or not(Risk of traffic camera flash).A disaster if it enter a basic bus stop meant for a bus only.(Poor behind buses)
Double Deckers/Superbus
Advantages:Good panoramic views at the upper deck,Comfortable for long journeys.Can seat more pax but not standees.
Disadvantages:Slow acceleration,Not friendly for senior citizens/disable peoples to go upper decks.Howling during climbing steep slopes and had to slow down on turns.Low branches!!
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Slow acceleration for DD? Try LO and VO3x..Originally posted by carbikebus:Articulate buses/Bendy
Advantagesowerful acceleration,Faster boarding/Alighting/More paxs,More standees.Turning radius is excellent over rigid buses and DDs.
Disadvantages:Not good for long journey like 45 mins above.When the SL beats the lights he had to double worry whether the trailer had over the line or not(Risk of traffic camera flash).A disaster if it enter a basic bus stop meant for a bus only.(Poor behind buses)
Double Deckers/Superbus
Advantages:Good panoramic views at the upper deck,Comfortable for long journeys.Can seat more pax but not standees.
Disadvantages:Slow acceleration,Not friendly for senior citizens/disable peoples to go upper decks.Howling during climbing steep slopes and had to slow down on turns.Low branches!! -
That does not depend on whether the bus is SD or DD what... Like what you said, it depends on the road quality and BC...Originally posted by Scania N113CRB luver:Do you mean comfort on the upper deck or lower deck? If upper deck you say comfortable on long trips then maybe you wrong, try taking 93 on a VO2x, and then the BC puts in full trottle, what a heck of a ride. VSO im not too sure, wikipedia says it got soft suspension, so maybe more comfortable. While taking 93 to Harbourfront, the circle line construction road there is the worst. Got alot bump then BC travels very fast, then see someone flag bus then suddenly jam brakes. Then my mother say" wah ai this bus driver anyhow drive sia"
But the VO2x have lots of legroom. -
SMRT articulated bsues can legally hold 147 while the models of superbus in SBSt cna legally hold 131 people. but the exception is that the B9TL allows standees on the upper deck so i can equal the 147 load of any articualted bus in this island.
the reason why the SBStransit's articualted buses were sold is because they dun wish to operate bendybuses. simple as that
as for SMRTbuses they dun wish to use doubel deckers. simple as that
ZYX -
You asking me?I'm ex-SBST Bc for Goodness sake,LOs maybe slow on 1st and second but good on third gear,VO 3X??Worse than LOs i dare to say.Blame it on the speed restrictor.Originally posted by chickenlittle2:Slow acceleration for DD? Try LO and VO3x.. -
Slow as in, in relation. Anyway, the VO3X is slow in acceleration, its true.Originally posted by chickenlittle2:Slow acceleration for DD? Try LO and VO3x.. -
Originally posted by ZYX2005:but the exception is that the B9TL allows standees on the upper deck Really?
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Wouldn't the bus CG become very high?Originally posted by ZYX2005:SMRT articulated bsues can legally hold 147 while the models of superbus in SBSt cna legally hold 131 people. but the exception is that the B9TL allows standees on the upper deck so i can equal the 147 load of any articualted bus in this island.
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Eh, that day sit my first WAB ride, SBS7324X, rumble down from Dover MRT to junction with Clementi Rd, very fast leh, B9TL loh...
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the 179 LOs are the best ,Originally posted by chickenlittle2:Slow acceleration for DD? Try LO and VO3x.. -
The problems with old bendy buses and an icy road.Is that a Mercedes 0405G?
http://www.youtube.com/watch?v=G283c3DAC3c -
SMRT articulated bsues can legally hold 147 while the models of superbus in SBSt cna legally hold 131 people. but the exception is that the B9TL allows standees on the upper deck so i can equal the 147 load of any articualted bus in this island.
Hello, can someone please confirm this? Someone up ^^ there said B9TL upper deck can have standing pax.
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Of course lah,What do you gain from quick shift speed gearbox?Originally posted by jetabt767400:Eh, that day sit my first WAB ride, SBS7324X, rumble down from Dover MRT to junction with Clementi Rd, very fast leh, B9TL loh... -
So it has a ZF gearbox? From what i know , some B9TLs have ZF 6HP502 6-speed while others have Voith DIWA 864.3 4 speed . So maybe the one with the 6-speed maybe shift faster due to the multi-speed.Originally posted by carbikebus:Of course lah,What do you gain from quick shift speed gearbox?
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You are wrong. B9TL does not allows for standing passengers at the upper deck.Originally posted by ZYX2005:SMRT articulated bsues can legally hold 147 while the models of superbus in SBSt cna legally hold 131 people. but the exception is that the B9TL allows standees on the upper deck so i can equal the 147 load of any articualted bus in this island.
the reason why the SBStransit's articualted buses were sold is because they dun wish to operate bendybuses. simple as that
as for SMRTbuses they dun wish to use doubel deckers. simple as that
ZYX
Total seating for lower deck is 27, with 53 sitting at upper deck. Lower deck standing, in which each standee is calculated to occupy an area of 0.15 square meters, means that there is a total of 44 passengers standing. Due to the loading on the axles, it cannot take the maximum of 53 passengers standing, even though total standee area is 8.04 square meters. -
Wat if rush hour leh den the driver pack all the passengers like sardine into the bus just like what happen on 190? Axles break in two? Tyre bbomp jeck?Originally posted by demag_ac:You are wrong. B9TL does not allows for standing passengers at the upper deck.
Total seating for lower deck is 27, with 53 sitting at upper deck. Lower deck standing, in which each standee is calculated to occupy an area of 0.15 square meters, means that there is a total of 44 passengers standing. Due to the loading on the axles, it cannot take the maximum of 53 passengers standing, even though total standee area is 8.04 square meters. -
According to 7324X, its 80/44, yup pal...
And when 7324X entered Clementi MRT stop, the last stop, there was a message "Check bus at depot" message, on the screen at the bottom left of the dashboard. I point and the driver said never mind, he will check.
Of course I not like kid, anyhow point lah.
That B9TL seems to have a 6 speed gearbox, acceleration felt on lower deck was much stronger than LO/VO3X, and the maximum speed achieved with similar conditions with similar pax, of course again, the similar road, was much faster.
Jerking, though, is very killer, as the acceleration is fast, the jerking at the accelerator will become very prominent. -
No matter how you pack those people in, you won't get more than 20% overload based on the capacity. I can't ever recall a bus that is so overloaded that the axles break and the tyres burst. Furthermore, count the number of people in the bus, you will not get more than 20% overload.Originally posted by Scania N113CRB luver:Wat if rush hour leh den the driver pack all the passengers like sardine into the bus just like what happen on 190? Axles break in two? Tyre bbomp jeck?
Remember way back when TIBS first bought in the bendy bus, and Temasek Polytechnic tried to squeezed in as many people as possible? It was on 3rd July 1998, and they managed to push 438 people into the box bendy bus (TIB 849 to TIB 904 series).
From what I know, the buses are designed based on a certain capacity, plus some overburden on ths bus. The axles won;t break into 2. Even harder for the tyres to burst, unless they have been weared down to a thin thread.
FYI, the rated laden weight of bus + fuel + 124 passengers + 1 driver is 23420Kg. The axles are rated at 23600Kg, that is max gross vehicle weight (laden weight). The tyres are rated at 26800Kg. -
Are you sure that a tyre can hold more pressure than an axle? I know that if you put a torch on an axle , it can take you 15min to cut it. It is so tough, but that's for truck axle, bus one i dont know. But i think that an axle is suppose to be the stongest part of a vehicle after the chassis.Originally posted by demag_ac:No matter how you pack those people in, you won't get more than 20% overload based on the capacity. I can't ever recall a bus that is so overloaded that the axles break and the tyres burst. Furthermore, count the number of people in the bus, you will not get more than 20% overload.
Remember way back when TIBS first bought in the bendy bus, and Temasek Polytechnic tried to squeezed in as many people as possible? It was on 3rd July 1998, and they managed to push 438 people into the box bendy bus (TIB 849 to TIB 904 series).
From what I know, the buses are designed based on a certain capacity, plus some overburden on ths bus. The axles won;t break into 2. Even harder for the tyres to burst, unless they have been weared down to a thin thread.
FYI, the rated laden weight of bus + fuel + 124 passengers + 1 driver is 23420Kg. The axles are rated at 23600Kg, that is max gross vehicle weight (laden weight). The tyres are rated at 26800Kg.
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FYI, I am not sure whether the tyres are stronger than the axles, but I am sure the PE who signed on the construction drawing for the bus jolly well do.Originally posted by Scania N113CRB luver:Are you sure that a tyre can hold more pressure than an axle? I know that if you put a torch on an axle , it can take you 15min to cut it. It is so tough, but that's for truck axle, bus one i dont know. But i think that an axle is suppose to be the stongest part of a vehicle after the chassis. , as well as the Comfort Delgro rep who signed on the drawing as well would! 
Somemore there are how many axles as compared to the tyres? -
Exactly! Only two axles are needed to support the back of the bus whereas 6 tyres are required to support the weight. Frankly speaking, i think a bendy bus is about 25% lighter than a DD. DDs are heavier because of the extra weight needed to prevent the bus from toppling over, whereas a bendy bus doesn't require this, but an experienced bus driver is recommended because backing up a bendy bus is lyk backing a semi-trailer, extremely tricky! I've seen one at Harbourfront for 963. The BC had to reverse the bus 3 times to align the bus properly and the trailer section keeps pushing into one direction!Originally posted by demag_ac:FYI, I am not sure whether the tyres are stronger than the axles, but I am sure the PE who signed on the construction drawing for the bus jolly well do. , as well as the Comfort Delgro rep who signed on the drawing as well would!
Somemore there are how many axles as compared to the tyres? -
Saw svc 963 in Habourfront, turn out that time quite smooth. TIB1229J. And if they can squeeze 438 people into the box bendy, kudos for whoever who have this idea.
Can be tricky when backing, or reversing, a bendy... -
Can the bus reach the 6th gear at 60km/h?Originally posted by Scania N113CRB luver:So it has a ZF gearbox? From what i know , some B9TLs have ZF 6HP502 6-speed while others have Voith DIWA 864.3 4 speed . So maybe the one with the 6-speed maybe shift faster due to the multi-speed. -
I believe in engineering terms, the limitations are imposed for the safety of passengers. The structure itself should be able to handle sudden additional loads. If not, that would really put the passenger safety at risk.
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inexperience BC.Originally posted by Scania N113CRB luver:Exactly! Only two axles are needed to support the back of the bus whereas 6 tyres are required to support the weight. Frankly speaking, i think a bendy bus is about 25% lighter than a DD. DDs are heavier because of the extra weight needed to prevent the bus from toppling over, whereas a bendy bus doesn't require this, but an experienced bus driver is recommended because backing up a bendy bus is lyk backing a semi-trailer, extremely tricky! I've seen one at Harbourfront for 963. The BC had to reverse the bus 3 times to align the bus properly and the trailer section keeps pushing into one direction!
BC shiuld reverse slowly and always keeps his eyes on the rearview mirror. He does not need to go foward again if his bus bends if he uses this method. Just reverse slowly and make fine turning to change the direction of the back part of the bus.
Like that trailer truck drivers more experience because he can reverse his truck with trailer in a straight line and very far.