Mayors and deputy mayors from Western and South-Western Sydney have united in a call for major improvements to the region's public transport network.

Local government leaders say rapidly growing communities are facing inadequate transport connections, congestion and insufficient public transport options.

The concerns were raised at the Western Sydney Transport Forum, where councils highlighted the need for additional metro links, more frequent bus services and upgrades to major roads.

Western Sydney has experienced significant population growth, with new residential developments and employment centres continuing to expand across the region.

However, transport infrastructure has not always kept pace with that growth, according to local leaders.

Residents in some areas face long journeys and limited public transport choices, while commuters can spend significant amounts of time travelling to major employment centres.

One of the key proposals is a metro extension connecting Tallawong to St Marys, which would provide an additional connection across Sydney's growing north-west and western areas.

Councils have also called for improved bus services and better connections between existing transport hubs.

Road upgrades are another priority, with local leaders highlighting congestion on major routes including Windsor Road.

Improved transport infrastructure is considered particularly important as the Bradfield City Centre project and other major developments continue to transform Western Sydney.

Local government representatives argue that reliable transport is essential if residents are to benefit fully from new jobs and economic opportunities being created in the region.

NSW Transport Minister John Graham acknowledged concerns about uneven development across Sydney and the need to improve connections between growing communities and employment areas.

The discussion reflects a broader challenge facing Sydney: ensuring transport infrastructure develops alongside population growth rather than after communities have already expanded.

Better public transport could also reduce reliance on private vehicles and help ease congestion on major roads.

Councils say investment in buses, metro infrastructure, roads and cycling facilities will be necessary to support Western Sydney's long-term growth.

The issue is expected to remain a major focus as Sydney prepares for continued development over the coming decade.