The　behavior　control　of　a　driver＇s　route　choice　aims　at　the　balance　of　traffic　volume　of　a　road　network.　Intervention　with　information　during　the　route　choice　behavior　process　can　reduce　the　freedom　of　route　choice　and　lead　to　special　behavior　results.　Based　on　the　present　situation,　this　article　analyzes　the　generating　way　of　centralized　route　guidance　under　the　conditions　of　the　internet　of　things.　It　discusses　the　track　results　for　the　simple　and　complex　route　when　the　vehicle　follows　centralized　guidance,　with　the　conclusion　that　centralized　route　guidance　has　closed-loop　verifiable　advantages　over　simulation　and　comparison　methods.　The　technology　of　internet　of　things　collects　vehicles＇　operation　dates　dynamically,　provides　the　foundation　for　centralized　guidance,　and　makes　traffic　behavior　control　possible.　©　2012　American　Society　of　Civil　Engineering.