On 2015 Feb 27, T Eugene Day commented:

This is an excellent use of simulation to tease out how complex factors influence ED crowding. In the real world, the (as the authors put it) "chaotic" nature of the ED can make identifying factors associated with crowding extremely difficult to understand. However, simulation allows us to make controlled experiments which reveal insight into system dynamics. This is an interesting and thoughtful approach to a difficult problem.

On 2015 Feb 27, T Eugene Day commented:

This is an excellent use of simulation to tease out how complex factors influence ED crowding. In the real world, the (as the authors put it) "chaotic" nature of the ED can make identifying factors associated with crowding extremely difficult to understand. However, simulation allows us to make controlled experiments which reveal insight into system dynamics. This is an interesting and thoughtful approach to a difficult problem.