Cloud　computing　can　provide　traffic　information　almost　unlimited　and　scalable　computing　ability　with　high-speed　network　to　link　up　all　kinds　of　computing　power.　Traffic　information　cloud　computing　is　considered　as　a　new　concept　for　efficient　information　acquisition　and　service　based　on　the　analysis　of　the　advantages,　features,　methods　and　deployment　of　traffic　information　cloud　computing　and　it　is　essential　for　traffic　behavior　control.　Taking　the　acquisition,　transmission,　calculation　and　application　of　vehicle　GPS　information,　the　existing　floating　car　information　processing　method　is　compared　with　that　of　cloud　computing.　A　method　for　cybernetic　route　guidance　is　proposed　by　cloud　computing　providing　drivers　high　utility　and　closed-loop　verifiable　personalized　route　guidance　information.