What BillyBong was referring to is ETA displays at bus stops.Originally posted by cck_190:SMRT Buses have started implementing this GPS System. If you have noticed, recently, SMRT had installed new LED Displays inside their buses. This is actually a "Next Stop Information System". It is already on trial since on Service 966.
Oh, ok...sorry. I thought he was talking about the GPS system on busesOriginally posted by ^tamago^:What BillyBong was referring to is ETA displays at bus stops.
It was scrapped last year as the bus companies have chosen not to support LTA's implementation as they could not agree on who should foot the bill (LTA, SBST, SMRTB or private sector), and whether tis shld be passed on to commuters through the increase of fares. The respective companies have since announced that they will proceed with the development of their in-house systems for this purpose.
SBST is more likely to be the first to roll it out under the umbrella of Automatic Vehicle Monitoring System (AVMS), whose deployment and implementation is currently in the early stages. One of the components of AVMS will also monitor the adherence of the buses to their schedules and will alert the driver if he had gone off course, or had been ahead or behind time by more than a specific amount of time.
The AVMS would probably a very useful tool.Originally posted by ^tamago^:What BillyBong was referring to is ETA displays at bus stops.
It was scrapped last year as the bus companies have chosen not to support LTA's implementation as they could not agree on who should foot the bill (LTA, SBST, SMRTB or private sector), and whether tis shld be passed on to commuters through the increase of fares. The respective companies have since announced that they will proceed with the development of their in-house systems for this purpose.
SBST is more likely to be the first to roll it out under the umbrella of Automatic Vehicle Monitoring System (AVMS), whose deployment and implementation is currently in the early stages. One of the components of AVMS will also monitor the adherence of the buses to their schedules and will alert the driver if he had gone off course, or had been ahead or behind time by more than a specific amount of time.
Massive jam along ECP...unavoidable even with AVMS.Originally posted by iamgoondu:The AVMS would probably a very useful tool.
I had waited for 40 minutes for SBST48 yesterday evening at 1935h at busstop outside FuLuShou. While waiting, I had seen:
a. 3 City Buzzes Cruisies by.
b. 4 SBST170
c. 3 off service SBST170
d. 2 Malaysian Yellow Buses
e. 5 SMRT851
f. 3 SMRT960
g. 3 SMRT980
You would probably understand my anger.
Anyway I didn't bring up this matter, as I am overwhelmed by SBST efforts in implementing more services, moreover it was a rainy day.
Wity AVMS, I believe one of those off services would take over SBST48 and started from FuLuShou.
Let's hope AVMS would be successful.
With AVMS, SBST can dispatch an off service bus in Queens Street Terminal to ply from Fu Lu Shou to Buona Vista.Originally posted by samtlk:Massive jam along ECP...unavoidable even with AVMS.
Meaning the JB spares must carry svc 48 destoes on board.Originally posted by iamgoondu:With AVMS, SBST can dispatch an off service bus in Queens Street Terminal to ply from Fu Lu Shou to Buona Vista.
That was sometime in 1994, involving services like 124, 143 & 952 etc. Transponders on these buses communicated with antenna affixed on traffic lights, which will calculate the time needed to reach the next bus stop by adjusting the traffic lights.Originally posted by iveco:The info board at Somerset MRT didn't seem to wrok. The trial was subsequently abandoned.
Meaning more costs...ultimately we'll still be the ones paying for them thru increased fares.Originally posted by iveco:Meaning the JB spares must carry svc 48 destoes on board.
Currently to the best of my knowledge, it is going to be schedule adherance. I may be wrong though.Originally posted by yoongf:It will be interesting to see whether the AVMS policy is based on schedule adherance or headway adherance.
SA means... arrival time based on preset time, while HA means consistent gap between 2 buses.
If there is active management of schedules (policy = HA), then.. if u are daily taking that 0645hr bus, u have no way of knowing whether that bus is going to be there on time or the timing has been adjusted early.
If the policy is to achieve best SA, then.. err.. buses may tend to go slower. Afterall, the control room can't ask a bus to speed up when it is stuck in a jam.
The control room can't ask the bus to speed up when it ws stucked in a jam, but it can dispatch another bus to continue from 'downstream'...Originally posted by yoongf:It will be interesting to see whether the AVMS policy is based on schedule adherance or headway adherance.
SA means... arrival time based on preset time, while HA means consistent gap between 2 buses.
If there is active management of schedules (policy = HA), then.. if u are daily taking that 0645hr bus, u have no way of knowing whether that bus is going to be there on time or the timing has been adjusted early.
If the policy is to achieve best SA, then.. err.. buses may tend to go slower. Afterall, the control room can't ask a bus to speed up when it is stuck in a jam.
It's foolish to can a system that is beneficial to commuters and drivers alike.Originally posted by yoongf:Err.. the system to install ETA info at bus stops (Transit.smart) has been canned. Thus.. AVMS is not going to benefit commuters at bus stops, perhaps only at bus interchanges.
Other countries.. AVMS is useful cos long headways.. buses can regulate speed to be on time. Buses also got space to idle at bus stops. Sg.. headways relatively short, bus lanes cramped.. seriously.. benefits.. I dunno..
I believes bus fleets are deployed to it's fullest efficiency. If got jam, I doubt there are buses/drivers available to fill the gap just because there is jam. What can happen ... is asking buses that have bunched up.. ask 1 of them to skip stops to leapfrog in front. But.. dun think commuters at bus stops like to see buses not stopping for them.
But I believe.. if got bus breakdown.. and a replacement bus is coming out, the replacement bus can accurately join the chain where the headway is longest. Another benefit is the deployment of short working trip buses, where the driver can feedback "live" where got crowd rather than based on fixed schedules.
The project was terminated in early 2003 due to misalginment with SBST's AVMS and TIBS's "AVMS" project schedule and etc. The money spent had not gone down the drain as the system procured has been redeployed to other projects.Originally posted by BillyBong:It's foolish to can a system that is beneficial to commuters and drivers alike.
Just another LTA harebrained decision which invested probably several thousands of dollars to test and in the end, conveniently abandon a viable system. What accountability can these people who take 'expensive lessons' be taken to task for? Tax payers dollars down the drain.
And you're wrong abt the system not being effective when jams and such are involved. It is PRECISELY the reason that such delays should be prompted to commuters so they can decide on the fastest alternative bus to get home. Isn't it the common inquisition of every commuter at a bus stop to ask: when's the bus coming?
Aren't we all concerned that we wait so long for our bus, and when it does come, it arrives in pairs? Or that the current paper times indicated at select bus stops are not adhered to?
okies. clarify. AVMS is a whole package of many sub-systems, one of which maintains schedule adherence, and the other (planned in the future) to provide ETA info. but right now, we refer to AVMS as the system that does schedule adherence cos they have not put in place the ETA info system yet.Originally posted by BillyBong:And one thing: AVMS is not supposed to be hindered by jams. It basically tells the commuter what the ETA at that particular bus stop is. Whether the commuter chooses to wait or take an alternate bus is entirely the commuter's decision.
from what you guys have discussed, they have ALREADY decided against it.Originally posted by ^tamago^:okies. clarify. AVMS is a whole package of many sub-systems, one of which maintains schedule adherence, and the other (planned in the future) to provide ETA info. but right now, we refer to AVMS as the system that does schedule adherence cos they have not put in place the ETA info system yet.
trust me, it'll come out sooner or later. i predict, within 2 years, the selected bus stops & interchanges will have some form of ETA system up, probably working in tandem with LTA's own Bus Travel Information System (BTIS).Originally posted by BillyBong:from what you guys have discussed, they have ALREADY decided against it.
Actually, ETA timing requires only a visual communication display; on buses and at bus stops and interchanges. No loudspeaker system is needed. Just take a look at the loudhailing system on MRT trains. They didn't last very long. Now the kawasaki trains having adopted a Digital display seems more presentable to passengers.Originally posted by carbikebus:FYI,October is the planning date for the AVMS to be activated islandwide and most buses have this sort of speaker just behind the Driver Cab(For info from Timekeepers)