$m_i$— amount of overlapping area;
$$
\max_{\forall n \in N_j} T(n) =
\frac{
\sum_{\substack{
i\in B
}}
p_i + ri
}
{\sum_{\substack{
i\in B
}}
m_i
}
$$

where T—per capita is the fintness funcion;
$N$— each stops;
$m_i$— amount of overlapping area;
$p_ij$—amount of 65+ population covered by service area;
$r_i$— amount of servcie area;
$h_j$—time from transfer station j to transfer track station;
$B$— collection of conventional bus stops in the area affected by the transfer hub;
The goal of this fitness function is to reasonably adjust the hopper bus line network