large size temporary road track 2×8 ft for soft ground-Source Temporary Haul Roads; Heavy Trackway – RVM B.V. Heavy Trackway. RVM’s Heavy Trackway, also called Mammoth mat, is the ultimate portable road. In mbination with the Fast deployment Tool (FDT) or Flatrack Deployment System (FDS), a 4m wide x 25m long road can be deployed []