Rail work vehicle 519 (2013).
<p>This vehicle has car tires and steel tram wheels.  The driver is both truck driver and tram driver.
</p>
He drives with retracted tram wheels on rubber tires on the road, but on the rails he can push the tram wheels down and continue on the track.  The rails are sanded with a sanding belt under the carriage.  As a result, the trams are less bothered by dirt and slipperiness and they can run on time.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/38891071@N00">FaceMePLS</a> from The Hague, The Netherlands
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/faceme/14585482922/">150 jaar HTM</a>