, ,

Mappt User Story: Urban Planning in Carlos Chagas City, Brazil

Mappt users in Carlos Chagas City, Brazil
A street scene in Carlos Chagos City, Brazil

A street scene in Carlos Chagos City, Brazil

Project Name: Technical Scientific Cooperation on Urban planning using Georeferencing and Geostatistics

Date: 2019

Company: Federal University of Viçosa

Location: Carlos Chagas City

Industry: Education

 

Background

  • What is the company? What does it do?

We have a scientific research group on developing new methodologies for urban land planning. Using georeferencing through drones, Geoprocessing, Geostatistics and MoT, Maps of Things, we are transforming the public policy of poor Brazilian municipalities and making them sustainable.

  • What was the background situation?

Urban land planning has always been a problem for Brazil. On average poor municipalities have never done a cadastral survey or it’s been 20 years since the last one.

Problem

  • Why did you need to use GIS?

In urban land planning the vertices of the minimum unit, called portion, must be georeferenced (required by current Brazilian legislation).

  • Why did you need Mappt?

The Mappt app was used to edit the attribute tables in the field by adding important and customised information about the features.

  • What problems were occurring before Mappt?

The usage of paper materials made the work messy and inaccurate.  Costs due to inaccurate data were higher than licensing Mappt for our field workers.

The alternative software available don’t have the features we needed. They also aren’t as intuitive as Mappt.

Objective

  • What was the overall objective of the project?

Developing new methodologies for urban land planning, using georeferencing through Drones, Geoprocessing, Geostatistics and MoT – Maps of Things. When we realise that our actions can give the expected sustainability in the project, then we create public policies and institute them in the municipalities.

 Solution

  • How did you use Mappt?

The app was used on a Tablet device, importing the features of the interested areas, adding physical and social information as needed for each address, such as pedology: -sandy –rocky –hard …; topology:  -rise -descent –level … ; etc.

  • What problems were solved?

The biggest problems were the inaccuracy of the data, since it was written on paper, the staff would check the wrong options.  The white paper also has a high reflectance, causing headaches for our staff.  Within 4 months of work, the amount of money that was saved on paper could even buy another device (Tablet). The number of people needed on each team on the field was reduced from 3 to 2, and in the office, to 1 person.

Urban planners utilising Mappt in the field

Urban planners utilising Mappt in the field

Orthophotos, JP2 images, loaded into Mappt

Orthophotos, JP2 images, loaded into Mappt

The visualisation of previously taken orthophotos and GPS position plus tracking helped the team to locate themselves and associate the polygons with the physical object.

The measurement of each team’s daily productivity allowed us to estimate precisely when the work would be finished.

We tried other apps available on the Google Play store, but none of them allowed editing the attributes by visually clicking the feature.  This makes the app very easy and intuitive to use, no knowledge of GIS software was needed.

Cadastral boundaries and building footprints in newly developed areas of Carlos Chagas City

Cadastral boundaries and building footprints in newly developed areas of Carlos Chagas City

  • Why did you choose Mappt over other software?

The choice of this app was based on its easy and intuitive interface. The field team found no difficulties in learning the steps to record information. Also no prior knowledge of GIS software is required for field data collection.  Initiating new team members is a quicker and therefore cheaper.

  • What Mappt features did you use?

All the work was done offline, even though an internet connection wasn’t required for this work. The paper forms became obsolete since Mappt allows users to edit directly on the attribute table, avoiding errors at the transcription stage.

Utilising the attribute to verify and update existing cadastral data. Note that Mappt is available in Korean, Japanese, Arabic, Spanish, Indonesian, Turkish, Hindi, Ukrainian, and Russian

Utilising the attribute to verify and update existing cadastral data. Note that Mappt is available in Korean, Japanese, Arabic, Spanish, Indonesian, Turkish, Hindi, Ukrainian, and Russian

Outcome

  • How did the project turn out?

The project was executed more efficiently and the clients were really satisfied.  Our clients even considered using the app themselves to update data from time to time.

  • What was the most valuable thing about the app?

The visualisation of orthophotos was undoubtedly the feature that most helped the field team to get their work done with precision. The style customisation of the polygons also helped them colour code the addresses that still required a site visit.

  • Did it save you time or money?

The amount of money saved is measured by the number of people that are not needed anymore; one person for each field team, and another one in the office to process the day’s field data. The amount saved on paper, would be used to pay for Mappt licenses and tablets over time.

  • Would you recommend Mappt to others? Why?

We sure do! The app is amazing, very stable, even when the devices got really hot, since a lot of sun light shined on it, it didn’t crash. The app doesn’t need high system requirements, the device we used was a Samsung Galaxy Tab A SM-T280 – 2016 (RAM: 1,5Gb; Internal Memory: 8Gb; Processor: Quad-Core 1.3GHZ; Battery: 4000mhA).

If you would like to know more about using Mappt as an efficient and robust field inspection utility, please contact us at: support@mappt.com.au

Try Mappt today by downloading it from the Google Play Store

 

homeritoSpecial thanks to Homerito Meireles from the Federal University of Viçosa, Brazil for authoring this article.  We’re gifting Homerito a Mappt lithium battery pack for his efforts.  All contributors for user case studies receive a free battery pack for their efforts.  Contact us at:  support@mappt.com.au to submit your user case scenario and receive a free battery pack.

Use the Mappt Lithium Battery Pack for backup power on those long field days

Use the Mappt Lithium Battery Pack for backup power on those long field days