- Myriad II Spatial Analysis Module
Myriad II Spatial Analysis Module
Purpose of Spatial Analysis
- Spatial Analysis gives an overview of how people move in a complex environment.
- It gives us a lot of information quickly, without the need for lengthy simulations.
- It can show areas of congestion, shortcuts, distance to nearest exit, compliance with building regulations.
- This can be done for all possible points in a certain geometry, giving an insight into how people move within the geometry.
Model Set Up
- A CAD plan of an office is converted into a bitmap, where black represents space where people can move.
- In this case, exit points are the stairs and lifts to a lower floor.
- The aim is to test an evacuation of the building.
Preliminary Model Run
- A Cellular Automata process is applied to give a ‘Spatial Analysis’ map or diffusion map.
- This shows us points closer to an exit in red (space used more) and points further away from the exits in blue (less used space).
- We can separate out colours and show contours, much like isotours on a a map of hills.
- These can tell us where crowds could build up quickly.
Model Distance from the Exits
- We can choose a range of distance to display in a certain colour.
- Here we have chosen three colours, red, green and blue as an example.
- This can check building evacuation regulations.
Model Areas of Congestion
- We let the model choose a random 500 points and each point then displays a trail to the nearest exit.
- We then do this for:
- We can see how people will move through the space during the evacuation
Model Individual Distances
- We can determine the individual distances to exit points from any point
- The circle shows the minimum width on route
- We confirm the suspected shortcut seen as a potential danger during evacuation
Applications for Spatial Analysis
- Checking buildings adhere to evacuation guidelines
- Find likely movements of people through a complex space
- Find areas of potential congestion
- Find Probability of Conflict i.e. areas where people are likely to be trying to occupy the same space
- Test, retest an optimise designs based on different criteria
- Identify unobvious shortcuts for movement