( CNN ) -- The risk of being jolted by 1,500 volts of electricity has n't scared them off . Neither have fears of falling off the speeding electric trains . Thousands of passengers ride on overloaded trains in Jakarta every day . So Indonesian railway officials on Monday will unleash a new weapon on commuters who squat on top of railway cars : spray them with colored dye , a local newspaper reported . The state transit agency told the English-language newspaper Jakarta Post that it hopes the `` unique approach '' will deter passengers riding illegally on rooftops . Trains are the cheapest and fastest form of transportation for office workers commuting between the capital city Jakarta and neighboring towns . Throngs of thousands cram the trains during the morning and evening rush hours , making it impossible for everyone to snag space inside packed cars . Under the new plan , security officials at each station will `` mark '' roof riders with dye as trains depart . When the passengers disembark at their destination , officials can then easily identify them . `` We will confiscate their IDs and give them a ticket , '' Akhmand Sujadi , regional spokesman for the transit agency Kerata Api , told the newspaper . `` We will send a copy of the ticket to their family , their local neighborhood unit head , their employer , or , if they 're students , their headmasters . '' The offenders can reclaim their ID cards once they write a letter `` regarding their behavior , to be signed by the person who received their ticket . '' More than 320,000 passengers rode trains to and from work every day last year , the newspaper reported . The crush of passengers meant revenues of 248 billion Rupiahs ( $ 26.8 million ) for the system . But many commuters prefer to ride on top of passenger cars -- either due to a lack of space inside or because they ca n't afford the ticket , which start at 1,000 Rupiahs ( $ 0.11 ) At least 53 rooftop riders died in the last two years , the newspaper reported . E-mail to a friend .
Commuters who squat on train roofs in Indonesia targeted with colored dye . Officials hope `` unique approach '' will deter passengers riding illegally . Security officials at stations will `` mark '' roof riders with dye as trains depart . When passengers disembark at destination , officials can easily identify them .