The　spatial　morphology　of　street　significantly　affects　urban　pedestrian-level　wind　environment　and　further　has　a　great　influence　on　human　outdoor　thermal　comfort.　Previous　studies　usually　simplify　urban　streets　as　2D　or　3D　street　canyons　with　consecutive　street　interface,　which　is　obvious　different　from　the　spatial　morphology　of　Chinese　residential　area　streets.　This　may　cause　wind　environment　difference　between　them.　Taking　Tianjin　as　the　research　area,　this　study　firstly　classified　local　residential　areas　into　several　categories　based　on　its　spatial　morphological　characters.　Numerical　simulation　was　then　conducted　to　analyze　the　pedestrian-level　wind　environment　between　each　category　of　street.　Key　spatial　morphological　factors　that　affect　pedestrian-level　wind　were　found.　Meanwhile,　this　study　figured　out　the　pedestrian-level　wind　environment　difference　between　Tianjin’s　actual　urban　streets　and　simplified　street　canyons.　Aspect　ratio,　which　is　the　common　morphological　indicator　used　in　street　ventilation　studies,　was　proved　to　be　unapplicable　in　ventilation　studies　for　Chinese　residential　area　streets.　This　chapter　suggests　several　optimization　methods　according　to　local　climate　condition,　and　provides　theoretical　references　for　residential　area　planning　and　design　for　Tianjin　and　other　Chinese　cities　with　comparable　climate　conditions.　©　The　Author(s),　under　exclusive　license　to　Springer　Nature　Singapore　Pte　Ltd.　2024.