UI Design
Below is the sketch of UI (User Interface) of our system in QGIS:
Push Button "Load Situation". On-going terrorist incidents are shown on the screen as circles with their centroids. The Centroids are the exact location of one incident and the circle is the buffer zone.The Radius of the circle is decided by the level of threat (LOT), which is an input data from the information center.
Once the situation is loaded, the user will be able to choose any of the incidents and check all relevant information related to each of them(location, number of attackers, timestamp, whether they are armed or not and casualty status). This information will help to decide which incident will be tackled first.
Also, escape routes from incident location to nearby neighborhoods are market on the map. Commander could decide, how many police forces should be sent to which intersection to intercept the terrorists.
Once the road-blocks points are deployed, the user can push the button "shortest path to police stations", in order to calculate the shortest path from each station to the incident location. The routes distances then will be depicted in a table, in a way that every time the user click on the police station column, the calculated route to that station will be highlighted on the screen.
The user could also choose one of the police stations and check information by clicking on the screen:
- First, the user needs to activate the selection tool by pushing the button "select police station on the screen ".
- When a station is chosen on the screen, the user should push the button "show information" and another table will be created with detailed information about the selected police station.
Based on the road/ block points, the shortest distance (least travel time) between a police station and incident location, and the up-to-date police stations information, the user will make decisions on how many police officers from which station will be deployed to the incident on which route.