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Ayodhya| 3million people| 3 days|

A masterclass in using 3D maps for planning + Real-time Governance with drones

Five redesigned drone sectors for Ayodhya
Orthomosaic highlighting evacuation routes alongwith providing parametric details like width

Insights from the planning stage:

  • Security Loopholes: High resolution Orthomosaic maps pointed out possible security loopholes localized to the city. We identified possible “pathraw” or stone-pelting hotspots and rooftops where such factors were accumulated.
A roof with a pile of bricks on top
  • Street Width/Length: We accurately calculated the width of streets and
    assessed whether a standard fire truck or ambulance will be able to reach a point of interest from a security standpoint.
  • Monitoring of Narrow Lanes: Conventional methods make it very hard to install CCTV cameras in every narrow lane and corner. The high resolution maps let us plan in advance for any security situation that may arise in any such narrow or dimly-lit areas, as well as the live footage from the aerial camera while the event is in place lets us monitor all the areas at 4K
    resolution from a single vantage point.
  • Depth Analysis: In Ayodhya, with such crowds, the river can be dangerous. Our analysis identified the most dangerous regions which needed constant monitoring by Jal Pac units and which areas should be completely cordoned off. Using this depth measurement and analysis at centimeter level accuracy using LIDAR and visual depth sensors, we were able to accurately analyze to create a detailed plan for Ghat activity.
Elevation model to identify safe areas in the Ghat. The dark blue areas are the deepest points, with greener areas close to surface level depth. The deepest points in this depth analysis are closer to 26.46 meters in depth, with smaller areas toward the center of the ghat closer to surface level values.
  • Position of CCTV cameras: The elevation models pointed out the best locations for CCTV cameras for maximum viewing range and efficacy.
    The positions were calculated using the highest elevation points and free-view fields. As you can see in the image below, these CCTV camera locations were assessed to be most efficient for recording the high ingress/egress zones and crowd collection points.
  • Rooftop positioning of units: A common problem in such crowded situations is establishing surveillance points with humans positioned for maximum area of vision. While drones were live in the sky, they cannot replace human instinct and thus to assist their placement, we calculated free-view zones and roof-top positions where units with binoculars and weaponry could be stationed.
The image shows the major rooftop observance positions calculated using elevation models, which were then assisted with drone surveillance and CCTV.
  • Waterlogging: As the event itself was called “Saawan Mela”, and rain was expected on all 4 days, we also calculated possible water logging areas which need to be cleared in case of heavy rainfall.


  • A smoothly planned event — Not a single casualty noted in 2016 (the average every year is around 30 people)
  • Communication and planning on a single platform allowed for the flow of granular geographic information in a visual format. Operations of drone-surveillance are performed together with the ground surveillance, it can contribute to achieving the desired positive net-effect for national security at considerably lower cost and resources.
A screenshot of the 3D model of the Ghats of Ayodhya. Inset- Line of sight analysis for sniper placement.



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Ayushi Mishra

Nerdy| Artistic| Quirky| Director of Strategic Partnerships@DronaMaps