Exploiting game development environments for responsive urban design by non-programmers ---- melding real-time ABM pedestrian simulation and form modelling in Unity 3D

Precinct.level pedestrian simulation often requires moderate to high.level modelling skills with a steep learning curve, and is usually non.flexible,  time.consuming  and  exclusive  of  the  broader  public community.    Confronting  these problems,  our  research  investigates a  novel  and  agile  workflow  to  test  precinct  pedestrian  behaviours by melding agent.based simulation (ABM) and responsive real.time form modelling mechanisms withinaccessible visualisation of city and precinct environments in a game engine, Unity 3D. we designed an agent system prototype of configurable and interoperable nodes that may be placed in an urban modelling scenario.  Realtime CsG, a fast polygon.based modelling plugin, is also introduced to our workflow where users can use the evidence observed when running a scenario to  quickly  adjust  the  street  morphology  and  buildings  in  response. In  this  process,   end  users  are  kept  in  the  design  loop  and  may make critical adjustments, whereby a responsive, collective, informed design agenda for our built environments can inform more detailed outcomes of pedestrian behaviour and action and promote more efficient collaborations for both professionals and local communities.