Question

Are models built in earlier releases of PTV Vissim compatible with later releases?

Answer

Yes, generally, models built in earlier releases of PTV Vissim can be read in later releases.

Network files created in VISSIM 5.40 or earlier have the extension *.inp, whereas those created in PTV Vissim 6 or later have the extension *.inpx.

*.inp files created in VISSIM 5.30 or earlier must first be saved in VISSIM 5.40-13 before they can be opened in PTV Vissim 6 or later versions up to Vissim 2022.

(We do not guarantee that the same results can be reproduced between different releases or even between different service packs.)

Vissim 2023 and following releases can no longer read *.inp files.