Track-work machine 2 (IMAGE) Graz University of Technology Caption Track-work machines are noisy and emission-intensive and expensive to operate and maintain. The special machines carry out several work steps simultaneously, for example renewing the track or grinding rails. Credit Lunghammer - TU Graz Usage Restrictions None when stating the source Lunghammer - TU Graz License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.