Traffic　microsimulation　tools　can　be　used　to　describe　complex　traffic　system　features　and　reproduce　traffic　scenarios.　Calibrating　parameters　is　the　prerequisite　of　using　simulation　technology　scientifically.　According　to　the　properties,　parameters　are　divided　into　basic　parameters　and　model　parameters　for　more　accurate　use　in　this　paper.　The　basic　parameters　act　on　the　global　behavior　characteristics　of　the　vehicle　and　the　model　parameters　act　on　the　specific　driving　behavior.　This　research　designed　two　actual　urban　road　experiments　to　perform　engineering　tests　on　the　basic　parameters,　including　the　relation　between　the　interval　of　acceleration　values　and　the　driving　experience,　and　the　characteristics　of　acceleration　and　speed.　This　paper　is　proposed　an　experimental　method　that　can　analyze　the　acceptable　threshold　of　acceleration,　which　divided　acceleration　into　three　phases:　unadaptable　and　unacceptable　phase,　unadaptable　and　acceptable　phase,　adaptable　and　acceptable　phase.　The　study　also　proposed　the　value　interval　for　basic　parameters　and　took　the　data　envelope　area　which　focused　on　the　data　fitting　line　as　the　form　of　expression　of　the　relation　between　speed　and　acceleration:　(1)　In　starting　phase　(V　35.4 km/h),　the　speed　is　relatively　stable,　and　the　acceleration-speed　slope　is　approximately　equal　to　zero.　The　study　is　beneficial　to　the　practical　application　of　simulation　work　and　self-driving　automobile.　©　2022,　The　Author(s),　under　exclusive　license　to　Springer　Nature　Singapore　Pte　Ltd.