Still consider the same network shown below. The travel time $($in minutes$)$ on each link is also given in the network. For example, the travel time from $A$ to $B$ is $2$ minutes, and the travel time from $B$ to $C$ is $3$ minutes, respectively.

Use gravity model $T_{ij}=P_i\frac{A_1(t_{i,j}{)}^{-0\mathrm{.}95}}{{\displaystyle \underset{?}{\overset{?}{}}}{A}_j(t_{li}{)}^{-0\mathrm{.}95}}$ to estimate the demand from A to C $,$ and from A to D $,$ respectively.

where the friction model is $F_{ij}=(t_{ij}{)}^{-0\mathrm{.}95},$ and $t_{ij}$ refers to the travel time on link $ij$;$P_i$ refers to the production from node $i$;$A_j$ is the attraction at node $j$; and $T_{ij}$ refers to the estimated demand from node $i$ to node $j.$

Note: simply use ONLY one iteration $($NO need to adjust by row and column factors$).20$ pts $)$

Hint: $(1)$ simply based on the observed flows to estimate the production of A$,$ and attractions at $C$ and $D,$ remantively and $(2)$ do not need to consider the node of B$.$

$3$