This is an interactive combination road and rail bridge in Oostende, Belgium. This is is designed
to be triggered to open the span and stop automotive traffic when some form of water traffic which has been set up as a
locomotive comes within the trigger radius on the 4 invisible tracks in the water. The blue invisible tracks are at ground
level (z axis = 0 ft 0.0 in). The green invisible tracks are at z axis = -10 meters (-32 ft 9.0 in) below ground level.
Water level should be set at -3 meters (-9 ft 10 in) below ground level. While this has track across the bridge it is fake.
Its parts in Gmax to look like rails. It is possible to have this bridge also carry trains (trams on the real bridge on meter
gauge track) but it must be done separately from the mesh. Normally trains cross interactive bridges on invisible track but
if that was done with this bridge the tram would also trigger the bridge to open. Instead run invisible track across it in
Surveyor. When this opens it should stop automotive traffic (like a mocrossing) but it will not stop the train. There is a
method of doing that. In the real world only half of this bridge crosses water (an 18 meter canal). The center support and
half the bridge is on dry land. However some folks may want to use it in a more conventional scene with the center of the
bridge in the center of a wider canal or river so I have added 2 extra invisible tracks in the water and made the center
support taller. Adjust bridge height as desired. If not needed just ignore them as they will not appear in driver.