The current hospital capacity is unrealistic and needs to be increased.
Most ER's can hold more than 30 patients, especially trauma centers. all the hospitals in my area have 30-60 beds, and even then if they get filled they cant turn ambulances away.
please increase capacity size, i have 5 hospitals built all fully expanded and i have to stop playing the game once they fill up,
if you are going to make missions that can generate over 30 patients in one call then hospitals need to be able to handle that.