有没有懂交通理论的啊!一个交通数学模型的题!The following trip generation has been suggested for use in a regional model:(以下方程用来作为一个区域性的数学模型）Pi=9.1-1.65*HHi+0.095*AQi-24.3*ADULTi+0.23*CHILDiwher

Question

有没有懂交通理论的啊!一个交通数学模型的题!
The following trip generation has been suggested for use in a regional model:(以下方程用来作为一个区域性的数学模型）
Pi=9.1-1.65*HHi+0.095*AQi-24.3*ADULTi+0.23*CHILDi
where:(其中）
Pi=number of trips produced in household(i)[某家庭i的旅行次数]
HHi=number of people in household(i)[此家庭总人数]
AQi=number of autos in household(i)[此家庭拥有机动车数量]
ADULTi=number of adults in household(i)[此家庭成年人数量]
CHILDi=number of children in household(i)[此家庭儿童数量]
Critique this model.Are the magnitude and signs of the coeffient resonable?[鉴定此方程.系数的大小和符号合理吗?]

Answer 1

假设一个三口之家,一辆机动车,代入计算,结果为负值,不可能,因此可确定不合理.