Unverified80% confidenceDecision RuleTime unknown
转弯半径是狭窄小区/电梯楼老人的核心指标：车长＜1.4m、转弯半径＜1.5m才能在标准住宅走廊和电梯口灵活掉头，四轮长车身（＞1.6m）在老旧小区易卡死
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80%
Confidence
Long-term
Relevance
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Unverified小区通道窄、需进电梯或狭窄车库的场景，选转弯半径≤1.5m的三轮或短轴距四轮车，四轮车虽稳但转弯半径普遍2m以上，掉头困难83% similarUnverified四轮代步车比三轮稳定但转弯半径大1.5-2米，狭窄小区通道和电梯选三轮或紧凑四轮（转弯半径＜1.5m），空旷平坦路面选四轮78% similarUnverified10英寸大前轮在户外不平路面（碎石路、草地、人行道接缝）通过性明显优于6-8英寸小轮款，但也因此整车体积较大，在狭窄室内通道或小型电梯中不够灵活71% similarUnverified室内使用优先小轮径（约12-15cm）便于狭窄空间转向，户外及有门槛/不平路面应选大轮径（20cm以上）+充气或实心大轮，小轮遇门槛易卡顿倾覆70% similarUnverified轮径≥18cm的充气轮或大直径EVA轮才能有效应对石子路、草地和减速带；轮径＜12cm的小轮只适合平整商场地面和电梯69% similar
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