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London Transport (uk.transport.london) Discussion of all forms of transport in London. |
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#1
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On Jan 31, 9:50*pm, Jeremy Double wrote:
Theo Markettos wrote: Cost of a basic smartcard is somewhere in the region of $1-$5. *That's not going to be cost effective unless it becomes feasible to make them out of organic or polycrystalline semiconductors (cheap, but the density and performance is nowhere near yet). *Then they could be printed on paper again, or plastic. In Portugal (Porto and Lisbon), they use stiff paper smartcards for ticketing, and the cost of the card is a few tens of Euro cents in addition to the cost of the travel (I can't remember the exact cost, but it was considerably less than $1). The cards are two layers of stiff paper or thin card and the aerial is made of foil in between the two layers. There is a small (about 1 mm square) chip that you can see as a small lump in the card. (A few years ago I disassembled a Lisbon one to see how it was constructed). -- Jeremy Double {real address, include nospam} Rail and transport photos athttp://www.flickr.com/photos/jmdouble/collections/72157603834894248/ The contrast here is between a stiff plastic card with high quality printing and a protective overlay (life 10 years) and the laminated paper and foil construction, simpler printing, less physically secure and life about a year (longer life, more cost, if protective overlays are used). But also the low cost product tends to use a cheaper chip with lower security. There is a new generation of low cost chips with AES encryption (current mainstream USA designed symmetric crypto), but UK/EU infrastructure in general doesn't support it yet - building access terminals will be the first to do that, maybe by the end of this year for the first commercial system offerings. |
#2
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ticketyboo wrote:
On Jan 31, 9:50 pm, Jeremy Double wrote: Theo Markettos wrote: Cost of a basic smartcard is somewhere in the region of $1-$5. That's not going to be cost effective unless it becomes feasible to make them out of organic or polycrystalline semiconductors (cheap, but the density and performance is nowhere near yet). Then they could be printed on paper again, or plastic. In Portugal (Porto and Lisbon), they use stiff paper smartcards for ticketing, and the cost of the card is a few tens of Euro cents in addition to the cost of the travel (I can't remember the exact cost, but it was considerably less than $1). The cards are two layers of stiff paper or thin card and the aerial is made of foil in between the two layers. There is a small (about 1 mm square) chip that you can see as a small lump in the card. (A few years ago I disassembled a Lisbon one to see how it was constructed). -- Jeremy Double {real address, include nospam} Rail and transport photos athttp://www.flickr.com/photos/jmdouble/collections/72157603834894248/ The contrast here is between a stiff plastic card with high quality printing and a protective overlay (life 10 years) and the laminated paper and foil construction, simpler printing, less physically secure and life about a year (longer life, more cost, if protective overlays are used). But if you want to use smartcards for all tickets (as appeared to be the case when I was in Porto in the Autumn), the low cost option is more acceptable to visitors... I wouldn't worry about having to pay 50 cents for a paper smartcard on which to load tickets for a trip of a day or two, but once the cost gets much above one Euro, and the smartcard is plastic and suitable for 10 years continuous use, I start to think I'm being ripped off. -- Jeremy Double {real address, include nospam} Rail and transport photos at http://www.flickr.com/photos/jmdoubl...7603834894248/ |
#3
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On Feb 1, 9:14*am, Jeremy Double wrote:
I wouldn't worry about having to pay 50 cents for a paper smartcard on which to load tickets for a trip of a day or two, but once the cost gets much above one Euro, and the smartcard is plastic and suitable for 10 years continuous use, I start to think I'm being ripped off. Or you re-jig your ticket machines such that they can refund deposits? I'm not convinced there is an issue then. Neil |
#4
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On Mon, 01 Feb 2010 03:11:06 -0800, Neil Williams wrote:
Or you re-jig your ticket machines such that they can refund deposits? I'm not convinced there is an issue then. They did that in Singapore - stations likely to be frequented by tourists have machines that take the cards back and issue refunds on the card deposit. |
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