#831 - Missing Maps: Kamrangirchar and Hazaribagh, Dhaka, Bangladesh (Archived)

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This project was archived.

  • Author: Missing Maps
  • Priority: Medium

The Missing Maps project aims to map the most vulnerable places in the world (affected by humanitarian crises: disease epidemics, conflict, natural disasters, poverty, environmental crises). Building on HOT's disaster preparedness projects, the Missing Maps tasks facilitate pre-emptive mapping of priority countries to better facilitate disaster response, medical activities and resource allocation when crises occur.

Kamrangirchar is the biggest slum in Dhaka, located in a peninsula area of 3.68 km² with an estimated 400,000 inhabitants. The area is bordered by the Buriganga river. Every day the Buriganga receives large volumes of untreated effluent coming from the tanneries localized in the neighbouring area of Hazaribagh.

In the Kamrangirchar slum, many workers are believed to be exposed to poor working conditions in an environment of harmful chemical pollution.

Hazaribagh also appears heavily contaminated and highly polluted, with poor working conditions comparable to Kamrangirchar. The environmental landscape appears heavily contaminated by waste.

Both areas are almost completely unmapped and Missing Maps seeks to create base maps to enable local government, health services, individuals and NGOs operating in the area the means by which to better allocate resources and plan services.

This mapping activity is not intended for political use or to put people working in local industry out of work. It is simply putting a vulnerable population on the map, so that they can receive necessary services.

This task will be followed in late January by local mapping activities.

Created by pedrito1414 - Updated - Priority: low

  Instructions

Entities to Map
Road networks, landmarks
Changeset Comment
Kamrangirchar Hazaribagh, Bangladesh #hotosm-project-831 #MissingMaps #NextView #MapGive
When saving your work, please leave the default comment but add what you actually mapped, for example "added buildings and a residential road".
Imagery

[imagery url available only after accepting the license]

Access to this imagery is limited by the NextView license agreement.

You need to review and acknowledge the agreement.


WE HAVE RE-PRIORITISED AREAS OF INTEREST FOR THIS TASK. PLEASE START ON THE FAR EAST TIP AND FOLLOW THE SPUR OF THE RIVER NORTH.

To provide the tracing needed to conduct 'on the ground' mapping activities, we need to map the road networks and major landmarks. Residential building will follow in a later task, but large buildings and other landmarks that will be recognisable from the ground should be included.

Click here for a powerpoint guide to mapping Kamrangirchar to help you understand what to look out for.

Also, the satellite image provided has a distortion due to the angle it was taken, so when mapping tall buildings, distortions needed to be accounted for. This can be done by mapping the roof, then dragging the polygon so that it reflects the true footprint of the building. Also, fee free to alternate between the Next View imagery and bing to check this as bing has a more vertical perspective (although, do the mapping using Next View as it is much more recent).

Use Next View imagery provided.

Save with credit to HotOSM. Comment the changeset with: Kamrangirchar Hazaribagh, Bangladesh #hotosm-project-831 #MissingMaps

Commonly used tags and useful resources:

Road networks

Taken from Wikiproject Bangladesh

  • highway=secondary - Regional Highways
  • highway=tertiary - Zilla roads
  • highway=unclassified - Local roads
  • highway=residential - City roads that are mostly for access to housing
  • highway=service - Alleys, etc
  • highway=living_street - City streets in high density areas, pedestrian priority
  • highway=footway - Paths that are not accessible by cars

Buildings:

  • building=yes for rectangular & round buildings - trace the building outline
  • building=construction for walls without a roof

Other useful tags

  Start contributing

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