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farnaz

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  1. Hello, I am working on evacuation network design problem. My network has several evacuation areas (source nodes), road segment, and shelters (destination nodes). I consider congestion as people might stick in the traffic and they have to reduce their speed in the road. My goal is to send people from hazard areas to safe areas in the defined time horizon. So my first question is that, can I use SIMIO for simulating my model? Since my model has limited time for evacuation (Terminating problem), can I validate my problem with replications, if yes, how many replications I need? 2) Is
  2. Hello, I have question about batching for my model. I would like to batch my entities in a specific node in my model and release them at a specific time. In other word, entities come to first server and they need to stay there until a specific time (for example 5 am and 5 pm) and then at that specific time they can be transferred to the second server. Could you please help me how to model it? I wanted to use Add.on process and using Wait and Fire steps but I do not know how to define an event. Also, I am not sure if my idea is correct? I really appreciate if you could help me
  3. I tried your solution and it works. Thank you so much
  4. Hello, In my SIMIO model there is a decision point and in this point some entities will be accepted and some of them will be rejected. For accepted entities, there are 3 different routes through the 3 different servers. So, I would like to create a rule in this decision point as follows: From 6am to 10am, entities would be accepted with probability (1-p1) and transferred to server A. So, entities would be rejected with probability p1. From 10am to 6pm, entities would be accepted with probability (1-p2) and transferred to server B. So, entities would be rejected with probability p2.
  5. Hi, In my model, one of the servers has working shift from 10am to 10pm. I would like the server works 1 more hour (from 10pm-11pm) if there is an entity in the server inputbuffer queue. Could you please give me a hint how to check the server inputbuffer queue for a specific time (10pm-11pm every day)? Also, I would like to have the detail results of my model for each entity based on the time for each server or node in excel because I run the model for a long time. Could you please let me know is there any option in SIMIO to provide the detail information in excel? I really appreci
  6. Hi, In my model, one of the servers has working shift from 10am to 10pm. I would like the server works 1 more hour (from 10pm-11pm) if there is an entity in the server inputbuffer queue. Could you please give me a hint how to check the server inputbuffer queue for a specific time (10pm-11pm every day)? Also, I would like to have the detail results of my model for each entity based on the time for each server or node in excel because I run the model for a long time. Could you please let me know is there any option in SIMIO to provide the detail information in excel? I really appreci
  7. Hi, In my simulation model, I am trying to reach the steady state for the results. So, I run the model with 100 replications for 5 year but if I change the 5 years to 6 years, or consider a 1 year warm up time, or 2 years warm up time for the system the results will vary differently for each changes . The changes are small for example the total waiting time increase around 4 minutes when I consider 2 years warm up for the system. So, how can I make sure the simulation results are steady state?
  8. I tried your suggestion but in that way server selects the exponential (10) all the time because it is the minimum and the other one (exponential (20)) does not have any chance for being selected. So, anyway I tried different solution and right now it works. I really appreciate for your time and help.
  9. Hi, I have a problem in my simulation model. In my model, entities do not exit from the system after finishing the process and they will go to a virtual server and two random variables (exponential (10 hours), exponential (20 days)) should be run PARALLEL for each entity. Once running of a variable is done, the other variable should stop. Every entities with exponential 10 hours variable will come back again to the system, while other entity with exponential 10 days variable will exit the system permanently. Actually, the holding time in the virtual server should be determined based on t
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