There are a lot many people who take prepaid Cabs from the airport.
And some of them do travel in the same direction in 2 different cabs, leading to double fuel consumption,double emissions and also double money.
While booking the airline ticket, the airline asks the customer if he needs a prepaid cab or not and upto which area in the city of arrival.
Through google maps it can be easily tracked who all want to go in the same direction.
Those people could be given the option to car pool, if they wish to, informing them about the cost benefit and the low carbon footprint that it would lead to.
This can reduce the fuel consumption by slight extent especially where there are lot of foreign tourists coming who end up in the same hotels.
The idea could be checked for its viability by further detailed analysis.
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All the frequent Flyers