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Why Should Someone Perform Microsimulation Analysis?
Microsimulation provides the ultimate in detailed analysis. There are many questions which are simply not able to be answered by conventional analysis. Deterministic analyses like the HCM and the different roundabout models can evaluate individual intersections. Only a microsimulation analysis can take into account the true impact that the individual intersections, weaving areas, control devices, and transportation modes have on each other.
Microsimulations are forced to work within the constraints of the physical world. Even though a roundabout or loop ramp has two lanes when a heavy truck is on it there is very little room for any other vehicles. The impacts of the roadway geometries and the physical size of the vehicles have tremendous impacts that are not take into account with macroscopic or deterministic analysis.
Just a few of the many questions that can be answered with a microsimulation analysis:
Just a few of the many questions that can be answered with a microsimulation analysis:
Public Relations - the 3D visualizations are terrific public relations tools
• My analysis shows that after the project the V/C decreases from 0.98 to 0.90. How can I show the public that this is a ‘BETTER’ Level of Service ‘F’?
• Mrs. Jones wants to know how the project is going to affect the view from her bedroom window…
Travel Demand Analysis – macroscopic models can gain a lot from the microscopic models
• My travel demand model reports a volume to capacity ratio of 0.9… is that 10 cars in the queue or 110?
• My travel demand analysis results in 1 'bad' link… how is that impacting other roadways in the area ?
• I am evaluating a new managed lane facility… how can I better forecast turning movements?
• I am doing a corridor study… how can I get better estimates for forecasted turning movements?
• My travel demand analysis results in 1 'bad' link… how is that impacting other roadways in the area ?
• I am evaluating a new managed lane facility… how can I better forecast turning movements?
• I am doing a corridor study… how can I get better estimates for forecasted turning movements?
Operational Analysis – there is no more detailed analysis than a microsimulation
• The proposed bridge reconstruction starts next week… what is the best way to preemptively affect the operation of alternative routes to prepare?
• The transit operator wants to use a ‘light’ preemption to improve transit travel times… how will this effect the passenger vehicles during the peak period?
A new stadium is being proposed… how will we be able to handle the event traffic?
• The construction will impact several transit routes… what are the best otions for re-routing or otherwise altering the transit service
• I have done an HCM analysis on the new interchange… how can I tell what effects it has on the adjacent weaving areas?
• The transit operator wants to use a ‘light’ preemption to improve transit travel times… how will this effect the passenger vehicles during the peak period?
A new stadium is being proposed… how will we be able to handle the event traffic?
• The construction will impact several transit routes… what are the best otions for re-routing or otherwise altering the transit service
• I have done an HCM analysis on the new interchange… how can I tell what effects it has on the adjacent weaving areas?
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