Beijing's public security bureau says it has assigned police officers to work with traffic wardens to protect the safety of passengers and avoid stampedes at transport hubs.

Police officers are mainly allocated to busy subway and bus stations to disperse traffic and normal operations, the bureau said on Wednesday.

The authority also distributed more officers to be on duty or increase their patrols, asking them to clear channels in metros more quickly.

In addition, security checks in metros will also be also more strict, the bureau said.

The capital's subway lines witnessed a record number of passengers on March 8, with 10.27 million riders traveling on the rail transit network.