Australian Rail Track Corporation has rescheduled level crossing upgrade works at Harefield between Wagga and Junee due to the potential impact on the rail network.
The $688,000 upgrade at Harefield Road level crossing to install high-intensity LED lights and reflective boom gates was expected to be carried out last month.
An ARTC spokesperson said during the course of pre-commissioning work, a more extensive impact on the operational network was identified.
"Major work will be delayed for this level crossing upgrade at Harefield Road, Harefield to allow further planning work to occur," the spokesperson said.
"To carry out final commissioning we will need to find a suitable operational window, obtain approvals and issue network notifications.
"The upgrade will be programmed toward the end of the year to allow these steps to occur. ARTC will advise road users in advance before the next stage of work starts."
ARTC asset management general manager Brian Green had previously said the upgrade will being carried out to improve safety for light and heavy vehicle users.
"The level crossing at Harefield is being upgraded to improve safety for the roughly 300 road users including up to 50 heavy vehicles accessing this crossing each day," Mr Green said.
"Transport for NSW is investing $688,000 into the project being delivered by Wabtec [locomotive supplier] on behalf of the Australian Rail Track Corporation.