Six bus services in different estates will be enhanced from the third quarter of this year, with private operators providing additional buses to improve frequency.

The Land Transport Authority (LTA) called a tender on Tuesday for private bus operators to run six "peak period short services".

These services will overlay the crowded stretches of current feeder bus routes during weekday peak hours and provide commuters with more frequent bus services to MRT stations or bus interchanges.

The existing services that will be replicated are: 265 in Ang Mo Kio, 285 in Clementi, 811 and 812 in Yishun, 903 in Marsiling, and 913 in Woodlands.

Commuters can expect at least five more bus trips during weekday peak hours, which are typically from 6.30am to 8.30am, and from 5.30pm to 7.30pm.

This is the third tender that the LTA has called for such services. This brings the number of peak period short services that will go on the road to 15 - four routes have been awarded so far.

In March last year, the Transport Ministry had announced plans to tap private bus operators to run short bus routes under the Bus Service Enhancement Programme (BSEP) to complement the resources of the public transport operators.

The Government will add about 40 new routes and 550 new buses to beef up the bus network under the BSEP. It also got private operators to run express bus services to the city, as well as peak period short services.