Show me the steps to solve THIS Question $2(40$ points$)$

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In Canada, most railways are single truck systems, which means, between two stations, a single track is used to accommodate traffic from both directions.$$ Your objective is to design a simulation model to ensure that trains would not block each other on rails. Moreover, station capacity is not exceeded. Both stations have a capacity for accommodating maximum $3$ train at once as seen in below figure. In figure below, the third track in Station B is reserved for the incoming train from Station A direction.

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$15$ mins. separation

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$$ As shown in above figure, both Station A and Station B have $3$ parallel tracks at the station.

$$ No two trains from opposite directions can be on the tracks at the same time

$$ A safety distance $($in terms of time$)$ of $15$ minutes should be respected between two consecutive trains.

$$ Up to $4$ trains can travel on the same directions

$$ Trains are arriving to stations from previous stations. In your model do not worry about where trains are coming from. Simply use a CREATE block to generate incoming trains from each stations.

Model the above described railway system using ARENA blocks. Only ARENA blocks will be graded. You may explain your model in a separate page to support your answers. However, your ARENA models should actually perform the functions that you describe verbally.