The NONROAD model is written in FORTRAN. It is available pre-compiled both on GitHub and when using the Windows installer for MOVES, so most users will not need to compile NONROAD. However, users running in a Linux environment will need to recompile.
Previously, EPA recommended using gfortran to compile NONROAD. However, we have received reports that in certain instances, NONROAD compiled with gfortran on some Linux platforms incorrectly produces near-zero emission results for some equipment types. Therefore, when compiling for Linux, EPA recommends finding a compatible FORTRAN compiler using the resources at fortran-lang.org. Note that we have not experienced any issues compiling with gfortran on Windows installed with MSYS2 or Cygwin.
Regardless of which compiler is used, NONROAD should be compiled using the makefile found in the NONROAD/NR08a/SOURCE folder. This can be done by navigating to the NONROAD/NR08a/SOURCE folder in a terminal and running the make command. Note that the first line of the makefile may need to be edited to specify your chosen compiler if you do not use gfortran.
After compiling NONROAD, delete the NONROAD/NR08a/NONROAD.exe file, and move your new executable to this location. After moving, ensure the file name is the same (including capitalization) as NONROAD.exe. If a different filename or directory is used, you will need to update the path to executable in the following configuration files:
- MOVESConfiguration.txt
- MOVESWorker.txt
- maketodo.txt
- manyworkers.txt