Private vehicles will only be allowed on Delhi’s roads on alternate days from January 1 next year, as the world’s most polluted capital tries to clean up its polluted air.
Social media erupted with reactions as soon as the Delhi government decision was was announced. Twitter users came up with a number of questions and pointed flaws in the move.
Apparently one of the big problems with Odd-Even number plate restrictions is that lots of people aren't sure about numbers ending with '0'.— Rohan Venkat (@RohanV) December 4, 2015
Technically zero is neither odd or even. So anyone with number ending zero can ply on both days! :-) Loophole https://t.co/aBlxRQFyCI— Gujju Gajamani (@gajamani) December 4, 2015
@AksharPathak meanwhile Delhi cops - Sir yeh zero odd hai ki even..????— Acrylonitrile (@realconthe3rd) December 4, 2015
One of the most intriguing questions was: “Is zero an odd number or even”.
Turns out Delhites aren’t the only ones who have faced this dilemma. When Paris implemented the odd-even car rationing in 1977, the police avoided fining drivers whose plates ended in 0, since they weren’t sure if zero was even or odd.
To avoid such confusion, the relevant legislation sometimes stipulates that zero is even; such laws have been passed in New South Wales and Maryland.
Half of the numbers in a given range end in 0, 2, 4, 6, 8 and the other half in 1, 3, 5, 7, 9, so it makes sense to include 0 with the other even numbers.