KUALA LUMPUR City Hall yesterday issued a total of 57 summonses to commercial vehicles drivers and private vehicle owner for committing various traffic offences in the city centre.

The two-hour operation which began at 10.15am was carried out around Jalan Tun Tan Cheng Lock, Puduraya, Jalan Hang Kasturi and Jalan Tun HS Lee.

The fourth installation of the operation dubbed Ops Halang was a joint operation carried out with the police and the Environment Department involving the participation of 28 officers.

Most of the offences committed were by commercial buses. There were also private vehicles that were parked on yellow lines.

The Environment Department also carried out tests on 11 buses to check if carbon emissions were within the appropriate level.

All buses passed the tests.

City Hall's deputy enforcement director Mohd Sauffi Muhammad said the aim of the operation was to create greater awareness among road users and also punish traffic offenders.

"Although this is the fourth time we are conducting this operation, there has not been a drastic drop in traffic offenders."

City Hall will nevertheless continue to facilitate traffic flow in the city.