Newman Road rail crossing closure at Geebung

[Golliwog]

http://www.translink.com.au/servicechange.php?1282689789

From 12am Saturday 28 August until 5am Monday 30 August, the Newman Road rail crossing (between Railway Parade and Robinson Road East), Geebung will be closed for repair works.

Route 325 (Boondall to City) inbound services will travel as normal to Newman Road stop 52, then divert via Robinson Road East, and Bilsen and Ellison Roads before continuing as scheduled.

Route 325 outbound services will travel as normal to Newman-Ellison Road stop 48, then divert via Ellison Road, Bilsen Road and Robinson Road East before continuing as scheduled.

During this time, services will not be able to access the Geebung train station or Geebung School bus stops on Newman Road.

There is also scheduled track work on the Caboolture/Sunshine Coast line.

[Golliwog]

Does anyone know what they are actually doing? If you read the rail line closure notice it says it is to allow for "track improvement works" but doesn't specify what.