1 Current Events & Technology · MPSC ATP

1.3 Technology in planning notes

5 notes, in reading order.

  1. 1.3.1GIS: raster and vector data models, georeferencing and spatial analysis

    A Geographic Information System stores, links and analyses data that has a location, using either a vector model (points, lines, polygons) or a raster model (a grid of cells), and it is the working platform for modern development plans.

    Standard · 8 min · Full course
  2. 1.3.2Remote sensing: platforms, sensors, resolution and Indian satellites (NRSC)

    Remote sensing records the Earth from aircraft or satellites by measuring reflected or emitted energy, and its value for a planner depends on four resolutions and on choosing the right sensor for the scale of the plan.

    Standard · 7 min · Full course
  3. 1.3.3GPS/GNSS, DGPS and NavIC; total station surveys for base maps

    Satellite positioning (GNSS) and total stations are the two field tools that give planners accurate coordinates: GNSS fixes control points from satellites, and the total station measures angles and distances between them to map every plot, road and building.

    Standard · 7 min · Full course
  4. 1.3.4CAD, digital twins and drones in planning – Drone Rules 2021 airspace zones

    CAD produces the precise drawings of a plan, BIM and digital twins turn buildings and cities into data-rich models, and drones give fast, cheap, large-scale base maps, flown under the Drone Rules, 2021 and its green–yellow–red airspace map.

    Standard · 8 min · Full course
  5. 1.3.5GIS-based development plans, land suitability analysis (AHP) and land-records digitisation (DILRMP, SVAMITVA)

    Development plans in Maharashtra are now made on GIS, land suitability is decided by weighted overlay of factor layers (weights often from AHP), and land records are being digitised and geo-referenced through DILRMP, NAKSHA in towns and SVAMITVA in village abadi areas.

    Standard · 9 min · Full course

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