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Ubiquitous Computing.

I was wondering about this for quite a while now, I hope i get something new by throwing question out to you guys.

How can we better the 21st century transport scheduling system? Because can it be made more smarter?

  • Thank you in advance

Note by Mathews James
2 years, 4 months ago

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A revolution in transport technology is really what we need. Chase Parker · 2 years, 3 months ago

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Sorry guys been working away from my computer. Basically i was thinking of these -

1) positon of transport vehicles is determined by automated positioning technology eg. GPS .. 2)Routes of vehicles are available 3)vehicles( i am talking about bus or trains) can tag locations that they anticipate will change the schedule of the other vehicles in the vicinity. Anticipated schedule change. 4)vehicles be re-routed and re-scheduled dynamically based on "Schedule change" locations. 5) If the capacity of the bus/train does not meet the number of people waiting on route to board the same. There are a few more but just working on this for now. In my opinion a system architecture that makes use of distributed computing ,iHCI, and a using a smart environment ( maybe embedded devices). Not really sure if @Raghav Vaidyanathan Kochi uses a smart environment for transport or just a historic pre-set route. if the traffic lights could communicate,anticipate traffic that can be used in real time by bus drivers and travelers?

Well I am stuck as well like you guys, and need to come up with an architecture. Regardless a good topic for discussion cheers. Mathews James · 2 years, 4 months ago

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@Mathews James and @Shashwat Shukla , I am working under the assumption that no one has choppers. 8-) Mathews James · 2 years, 4 months ago

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@Mathews James Makes things that much harder then(P.S: I was just fooling about, sorry if I might have gone off topic) Shashwat Shukla · 2 years, 4 months ago

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@Mathews James Kochi uses a historic pre-set route. And yes, what you are saying definitely makes sense. I've thought about it. Almost makes it seem like a living organism. But both of us know that it will be very challenging to implement. I'm no expert at all this, but what you are talking about is very similar to the "internet of things" where everything can communicate between each other. I think 3) leaves a lot of room for human error? Not all anticipation leads to the real thing. Also, I would like to add onto 5), the converse may also happen, when number of people are much lesser than anticipated, you wouldn't need multiple vehicles for 2 or 3 people. Raghav Vaidyanathan · 2 years, 4 months ago

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Hmm.. that is a question of great practical importance. Well, I have faced problems in the past with the public transport system in my city(kochi, kerala, India).

The problem here is that the transport system is not well equipped for rush hour traffic. Get out to the highway around 6.30 pm, you'll reach your destination at 9, get out at 8:45, you'll still reach at 9. Being largely unplanned, kochi never had a well planned public transport system. And since we have a metro rail project in process, there are even more detours and blockades. So what I want to know is whether transport scheduling systems could adapt to these changes. Rush hours are predictable, but when it comes to maintenance works and things of that sort, can a scheduling system accommodate these as well? Raghav Vaidyanathan · 2 years, 4 months ago

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Comment deleted Mar 18, 2015

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@Azhaghu Roopesh M It is functional analysis: You have to commute from point A to point B and must optimize your path so that it takes the least time.

Of course there are so many other constraints on the path as well:

1)There are millions of variables(people) and paths don't intersect(accidents).

2)It's not really A to B. More like A to B,C...Z and well beyond.

3)Everyone doesn't own a chopper or a jet. That would solve the problem :D

4) Human error and associated randomizing factors.

I only know the basics of the basics of functionals and therefore my opinion is not really of any consequence. But this could turn out to be a fun discussion, because there are millions of ways to analyse something so complex.

However I'd like to know why fluid flow modelling can't/isn't used here. Given the number of vehicles and commuters involved, why can't traffic be approximated to a very 'gritty' continuum,and so isn't traffic very much like a fluid?

It follows a definite path(or is supposed to) and much the same basic laws of fluids can also be applied, like the equation of continuity. Is it because this is an optimization problem and working with fluids as mathematical objects difficult to implement/ there aren't enough data points to go with a fluid-model? Or that it isn't like a fluid after all?

@Azhaghu Roopesh M @Mathews James Shashwat Shukla · 2 years, 4 months ago

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@Shashwat Shukla Let us assume that humans are like fluid particles and no one has a house or stoppage, then we can use continuity equation :D

No. of nomads × width of road = constant Mvs Saketh · 2 years, 4 months ago

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@Mvs Saketh Lol :D

Actually, we can take the analogy even further,just for fun: cars are made to in-compressible too for one thing.

Also, the sides of the roads offer 'viscous drag' : slower cars always travel along the side of the road and so do other slow moving things like pedestrians(most likely being 'pulled' by all the fancy shops on the side of the road). The 'fluid' is always fastest in the middle, just like a viscous fluid travelling in a cylindrical tube. Shashwat Shukla · 2 years, 4 months ago

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@Shashwat Shukla yeah,totally, i am sure the predictions will be extremely accurate that way Mvs Saketh · 2 years, 4 months ago

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@Mvs Saketh That was just dripping with sarcasm -_-

I did mention 'just for fun' didn't I? Obviously this isn't a good method of analysis. Shashwat Shukla · 2 years, 4 months ago

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@Shashwat Shukla Indeed, i too meant as for fun only :) ofcourse , i hardly think it is possible to get an even close to real model for this, too many varriables, and too many constraints Mvs Saketh · 2 years, 4 months ago

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@Mvs Saketh Cheers :)

And yea, there are too many variables.

Unless the author of this note doesn't review/add something to direct the conversation, this isn't going to get anywhere at all. Shashwat Shukla · 2 years, 4 months ago

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@Shashwat Shukla I'd love it if you could gift me a chopper :D

Btw , it's high time Indian Railways improved ! I know that in a country like ours , this is not an easy statement to make .

In a way , I agree with @Raghav Vaidyanathan regarding railways. Azhaghu Roopesh M · 2 years, 4 months ago

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@Azhaghu Roopesh M The chopper I can gift you is an R-C controlled one, and that's if I say up for a year :D (you have to see the price tags on some of the ones I have seen to believe it)

Totally agree with regards to the railways. Shashwat Shukla · 2 years, 4 months ago

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Well , I am not the traveling type so I guess I can't comment here . But I'd very much like to know about other people's views !

What are your ideas sir ? Azhaghu Roopesh M · 2 years, 4 months ago

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