Chandigarh: The graph of earning revenue through traffic challans has often witnessed a rise, but in view of the past five years between 2011 and 2015, the revenue collected was less in 2015 than 2014. Otherwise, every year, traffic police earned record-breaking revenues reaching crores of rupees. About 3,14,237 vehicles were challaned in 2014, and about 2,91,412 vehicles were challaned in 2015. Although the loss could be a serious concern for the UT administration, for traffic experts, the decline in the number of challans is a positive sign.Rakesh Ahuja, a member of the road safety committee attached with the traffic police, said: "There can be so many reasons responsible for lesser challans, and one could be awareness about traffic rules among masses. The public includes not just city residents, but even people who frequently visit Chandigarh."Statistical data obtained from the challaning branch of the UT traffic police has revealed that about 1,22,099 vehicles were fined, and around Rs3.25 crore was collected in 2011.The figure of challaned vehicles was about 3,14,237, and the total recovered challan money was about Rs11.78 crore in 2014. Until July 31, about 1,97,653 vehicles had been challaned, and about Rs6.82 crore was earned through them.The categorized record of traffic police states that a majority share of the challan money in crores was recovered for helmet-less driving, over-speeding, using cellphones, and tinted windowpanes, in 2013.Sources said some traffic offences, which were reported highest during the corresponding year than the previous two years, have played a crucial role in the collection of record-breaking challan money.