Analysis reveals Morrison government funnelling billions into must-win marginal seats

Almost $10bn in funding spread across 120 projects was not recommended by Infrastructure Australia with the bulk of this going to projects that span multiple electorates.

This compares with fairly safe and safe seat groups, which received $1.2bn and $1.9bn respectively.

Almost $250m will be spent in the western Sydney seat of Lindsay, held by the Labor party on a 1.1% margin.

Seats in regional Queensland are also huge beneficiaries of the infrastructure cash splash, with almost $140m going to road projects in Flynn, Capricornia, Longman and Leichhardt. Just one of these projects worth about $10m was recommended by Infrastructure Australia.

In Tasmania, $530m has been allocated to the three marginal seats of Bass, Braddon and Lyons, with the largest allocation being a $336m regional roads package for the north-east of the state.

Western Australian marginal seats are also set to benefit, with Pearce and Hasluck to share in $240m for road and Metronet upgrades.

Birmingham said the funds for the car park projects represented just 0.3% of the total spend.