unité 1 Guide facilitateur

Beginning OpenStreetMap Trainer Toolkit - (A Guide for Facilitators)

BADAN NASIONAL PENANGGULANGAN BENCANA

2013

sur le kit

** le kit OpenStreetMap du formateur débutant** a été comçu pour préparer les formateurs à fournir un cours de formation de base aux nouveaux utilisateurs d’OSM. Les éléments inclus aideront les formateurs dans leur tâche auprès de publics variés et répondront aux problèmes courants, et leur proposeront des méthodologies adaptées à leurs publics.

When organising an OpenStreetMap workshop, numerous factors must be considered, including the length of time you have to train, available resources, number of trainees and their technical skills. This toolkit will help trainers prepare trainings for different types of participants, but it will primarily focus on educating those with little or no experience with GPS, map-making and computers.

The purpose of this toolkit is to prepare the trainer to successfully train workshop participants in adding spatial data to OpenStreetMap.

Purpose of Workshop

This workshop is intended to achieve the following standard and basic competencies:

Standard Competency

Collecting Spatial Data with OSM

Basic Competencies

  1. Draw paper maps to gain a basic understanding of OpenStreetMap
  2. Navigate OpenStreetMap website
  3. Operate JOSM
  4. Use GPS to add data to OSM
  5. Use Field Papers to add data to OSM
  6. Edit a map and add information to OSM using JOSM
  7. Correct imagery offset
  8. Get OSM data in a specific format to be analysed further in Geographic Information System (GIS) software

Workshop Materials

  1. The OpenStreetMap website
  2. Working with OSM
  3. Working with JOSM
  4. Using GPS
  5. Field Papers
  6. Editing OpenStreetMap through JOSM
  7. Imagery offset
  8. Getting OSM data

Workshop Strategies

  1. Methods emphasised in this workshop are participatory teaching and active participation in all sections and activities, rather than lecture method.
  2. Participant oriented. Participants are encouraged to find and gain knowledge and skills by themselves.
  3. Trainers serve as facilitators. Trainers facilitate to help ideas in the workshop emerge from the participants, not only from trainers. However, trainers must be ready to provide necessary information when the participants need any assistance.
  4. Outcome oriented. Workshop must produce the outcomes mentioned previously.

Tools

  1. Copy of Data Collection Using OpenStreetMap Beginner Level for participants
  2. A workshop space with tables and seats
  3. Computers (one computer may be used by two participants, but it is better if one computer is used by one participant)
  4. A Printer (to print out Field Papers)
  5. A Projector (to present slide and demonstrate technical instructions and software)
  6. GPS devices (ideally, one GPS is used by two or three participants in a group)
  7. Batteries for GPS devices
  8. USB cable to connect GPS devices to computer
  9. USB Flash drive(s) to transfer files and software
  10. Good internet connection
  11. Snacks and coffee for breaks

Schedule

Below is an outline of a schedule for a five day workshop that has been tested with several groups in Indonesia. You may choose to adapt and change this workshop schedule to meet your needs.

Day I:

Time Materials Activities
09.00 - 10.00 Opening and Introductions Plenary Session
10.00 - 10.15 Break 1  
10.15 - 11.45
  1. The OpenStreetMap website
FGD and Plenary Session
11.45 - 12.45 Lunch break  
12.45 - 14.45
  1. Working with OSM
FGD and Plenary Session
14.45 - 15.00 Break 2  
15.00 - 16.00
  1. Working with OSM
FGD and Plenary Session
16.00 - 17.00
  1. Working with JOSM
FGD and Plenary Session

Day II:

Time Materials Activities
09.00 - 10.00
  1. Working with JOSM
FGD and Plenary Session
10.00 - 10.15 Break 1  
10.15 - 11.15
  1. Working with JOSM
FGD and Plenary Session
11.15 - 12.15
  1. Using GPS
FGD and Plenary Session
12.15 - 13.15 Lunch break  
13.15 - 15.15
  1. Using GPS
FGD and Plenary Session
15.15 - 15.30 Break 2  
15.30 - 17.00
  1. Using GPS
FGD and Plenary Session

Day III:

Time Materials Activities
09.00 - 10.00
  1. Using GPS
FGD and Plenary Session
10.00 - 10.15 Break 1  
10.15 - 12.00
  1. Field Papers
FGD and Plenary Session
12.00 - 13.00 Lunch break  
13.00 - 15.00
  1. Field Papers
FGD and Plenary Session
15.00 - 15.15 Break 2  
15.15 - 16.15
  1. Field Papers
FGD and Plenary Session
16.15 - 17.15
  1. Field Papers
FGD and Plenary Session

Day IV:

Time Materials Activities
09.00 - 10.00
  1. Editing OpenStreetMap with JOSM
FGD and Plenary Session
10.00 - 10.15 Break 1  
10.15 - 12.00
  1. Editing OpenStreetMap with JOSM
FGD and Plenary Session
12.00 - 13.00 Lunch break  
13.00 - 14.30
  1. Editing OpenStreetMap with JOSM
FGD and Plenary Session
14.30 - 15.00
  1. Editing OpenStreetMap with JOSM
FGD and Plenary Session
15.00 - 15.15 Break 2  
15.15 - 16.15
  1. Imagery offset
FGD and Plenary Session
16.15 - 17.15
  1. Imagery offset
FGD and Plenary Session

Day V:

Time Materials Activities
09.00 - 10.00
  1. Editing OpenStreetMap with JOSM
FGD and Plenary Session
10.00 - 10.15 Break 1  
10.15 - 12.00
  1. Editing OpenStreetMap with JOSM
FGD and Plenary Session
12.00 - 13.00 Lunch break  
13.00 - 14.30
  1. Getting OSM Data
FGD and Plenary Session
14.30 - 15.00
  1. Getting OSM Data
FGD and Plenary Session
15.00 - 15.15 Break 2  
15.15 - 16.15 Workshop Evaluation and Closing Plenary Session

Workshop Plan

Session 1

The OpenStreetMap Website

Time : 90 minutes

Basic Competency

Draw paper maps to gain a basic understanding of OpenStreetMap

Indicators
  1. Understand the concept of OpenStreetMap
  2. Understand the definition and objectives of data collection
  3. Understand the composition of a map
  4. Make a hand-drawn sketch of an area
Outcomes
  1. Questions and comments about OSM, data and maps
  2. Hand-drawn sketch of an area
Core Material

The OpenStreetMap Website

  1. Concept of OpenStreetMap
  2. Definition and objectives of data collection
  3. Components of a map
  4. Hand-drawn sketch of an area
Activities
Activities Methods Tools

Introduction 5’

Explain the importance of the session, objectives, outcomes and activities of the session.

Lecture Slide Powerpoint

Quiz 15’

Ask questions to be answered by participants, such as:

  • What is OpenStreetMap?
  • What is data?
  • What are the components of a map?
Quiz

Powerpoint presentation

Module 1

Explanation 30’

Definition of OpenStreetMap

Data:

  • Definition of data
  • Objectives of data collection
  • How to add data
  • How to save data

Map:

  • Definition of a map
  • Components of a map
  • How can a map show us information?
  • How to connect attributes to a map?
  • Mapping process
Lecture

Powerpoint Slide

Module 1

Individual Work 10’

Ask each participant to draw a map, complete with its information such as the name of streets or districts

Individual work

Paper and pen

Module 1

Presentation 15’

Ask the participants to show their maps and explain what they have drawn

Presentation  

Emphasis 10’

Emphasise some points:

  • A map represents places/objects with different symbols
  • There are three ways to represent an object: as point, line and polygon (area).
  • Objects on a map represent objects from the real world
  • Digital maps are composed of shapes similar to real objects and the shape is composed from points, lines and polygons (area).

Ask the participants to give examples about objects that can be represented as point, line and polygon (area).

Lecture

Q & A

Powerpoint Slide

Closing 5’

Ask the participants to give their opinion and feedback about what they have learned in Session 1.

Q & A  
FAQ (Frequently Asked Questions)

How did the UK begin mapping? How did OpenStreetMap start?

OpenStreetMap started with just a handful of volunteers who had GPS devices. They went out, collected data on their GPS and made sketches of maps and took notes, and then added the data into the OSM database at home. These initial volunteers hosted “Mapping Parties” in different towns, in which anybody could come out with them one day and go mapping. These parties helped expand the network of volunteers, get more people involved, and create great maps of different towns.

How did they create maps so thoroughly? What technologies did they use?

At the beginning, mappers only had GPS to work with, and any map data that was freely given to the OpenStreetMap community. Later, OSM made a deal with Yahoo! to be able to use their satellite imagery to digitise maps with. More recently, Microsoft and Mapbox have made imagery available to OSM.

Can we use OSM with Google Maps?

It is not legal to use Google Maps as a resource when editing OpenStreetMap. Google has not given permission for this like Microsoft has, and so it is not acceptable to use.

Session 2

Working with OSM

Time : 180 minutes

Basic Competency

Navigate OpenStreetMap website

Indicators
  1. Visit OSM website
  2. Navigate map on OSM website
  3. Save an image from OSM
  4. Register an OSM account
  5. Editing a map
  6. Save edits
Outcomes
  1. Participants sign up for an OSM account
  2. Map images created from OSM website
Core Material

Working with OSM

  1. OSM website
  2. Navigating the OSM map
  3. Saving images from OSM
  4. Creating an OSM account
  5. Editing the OSM map
Activities
Activities Methods Tools

Introduction 5’

Explain the importance of the session, objectives, outcomes and activities of the session.

Lecture Powerpoint presentation

Demonstration 20’

Ask participants to pay attention to a demonstration about:

  • Main functions of OpenStreetMap website
  • Zoom in and zoom out the map
  • Pan the map
  • Find a place
  • Save image from OSM website
Demo

Computer

Projector

Powerpoint presentation

Module 2

Practice 40’

On the projector, show participants openstreetmap.org and ask participants to follow these activities:

  • Main functions of OpenStreetMap website
  • Zoom in and zoom out the map
  • Pan the map
  • Find a place
  • Save image from OSM website
Practice

Computer

Projector

Powerpoint presentation

Module 2

Input 20’

Explain:

  • The OpenStreetMap licence. ODbL is a licence in which all of the data in OpenStreetMap can be used by everyone freely, but the user must add OpenStreetMap attribution and contribute back to OpenStreetMap
  • If users choose public domain when they sign up, it means that they consider their edits to be freely usable with no licence whatsoever

Lecture

Q & A

Projector

Powerpoint presentation

Module 2

Demo and Practice 45’

  • Show the participants how to sign up or register an OpenStreetMap account (problems: some participants might not have email accounts, some participants might forget their email passwords)
  • When everyone is signed up, show participants how to log in to their OSM account

Demo

Practice

Computer

Projector

Powerpoint presentation

Module 2

Demo and Practice 45’

Show participants how to edit the map on the OpenStreetMap website and save their edits.

  • How to add and remove objects in the iD editor
  • How to save edits in the iD editor

Demo

Practice

Computer

Projector

Powerpoint presentation

Module 2

Closing 5’

Ask the participants to give their opinion and feedback about what they have learned in Session 2.

Q & A Projector Powerpoint presentation Module 2
FAQ (Frequently Asked Questions)

Forgot Password

Sometimes participants forget their password. In this case, you will need to help them to reset or create a new password. If that is not possible they may need to open a new email account. If the participants already have an OpenStreetMap account but forget the password, help them to reset their password.

Do not have email

If participants do not have an email account, help them create a new one.

Session 3

Working with JOSM

Time : 180 minutes

Basic Competency

Operate JOSM

Indicators
  1. Download JOSM
  2. Install JOSM
  3. Set JOSM preferences
  4. Use basic tools
  5. Draw nodes and ways in JOSM
  6. Change objects
  7. Add tags to objects using presets menu
Outcomes
  1. JOSM is ready to use for OSM mapping
Core Material

Working with JOSM

  1. Downloading JOSM
  2. Installing JOSM
  3. Setting preferences in JOSM
  1. Bing imagery
  2. Presets
  3. Plugins
  4. Language settings
  1. Drawing maps using JOSM
  1. Basic operation
  2. Nodes, ways, and shapes
  3. Changing objects
  4. Adding presets
Activities
Activities Methods Tools

Introduction 15’

Explain the importance of the session, objectives, outcomes and activities of the session.

Ensure that JOSM, GPSBabel and GPS drivers are installed on the computers of participants

Talk Powerpoint presentation

Demonstration and Practice 1: 45’

  • Demonstrate how to install software using projector
  • Ask participants to follow along
  • Help participants if they have problems with the steps like installing software or computer system configuration

Demo

Practice

Powerpoint presentation

Participants

Computer software on USB Projector

Demonstration and Practice 2: 90’

  • If software is already installed, ask participants to open JOSM

  • Demonstrate the basic features of drawing a map

  • Ask participants to follow the steps shown about:

    • Setting language to Bahasa Indonesia
    • Drawing nodes, ways and shapes
    • Selecting nodes and ways
    • Understanding that a way consists of nodes, and a shape is a way that is finishes where it begins
    • Adding custom presets to the menu
  • Explain how the data is added to objects in tag format. A good way to explain a tag is to describe it as a label which is put on the objects and each label describes different attributes about that object

  • Show that there are many types of tags for different attributes, and the easiest way to add them to objects is by using the presets menu

  • Ask participants to draw their paper maps using JOSM to create nodes, ways and shapes

Demo

Practice

Computer with installed software

Paper Map

Closing 30’

One or several participants are asked to summarise Session 3

Q & A  
Common Problems

Setting up on Mac and Ubuntu

The steps to install on Mac and Ubuntu are quite easy. JOSM is a software based on Java so it is platform independent, but you have to make sure Java is already installed on your computer system. GPSBabel does not have a GUI for Linux, so it would be harder to use on Linux, especially for newbie users.

JOSM runs out of memory

Sometimes if someone downloads a lot of imagery and data on JOSM, the computer runs out of memory and crashes. The solution is to start JOSM with a batch file that will tell JOSM to add extra memory. An example batch file is provide in this toolkit, but you have to edit it using a text editor to put the correct location of the josm.jar file.

Participants add tags on nodes rather than the ways

Sometimes it is difficult for new OSM users to understand that a way consists of several nodes. Often a tag that is supposed to be put on a way is accidentally put on the nodes that make up that way. This can happen when a user draws a selection box that selects all the nodes on an object. This is an important problem to correct from the beginning, to train good mappers.

FAQ (Frequently Asked Questions)

Is there an easy way to restart JOSM after we finish installing plugins?

Yes, there is a plugin that you can add which allow you to restart JOSM by clicking a button. To activate it, install it in the Preferences menu.

Could we make tags in Bahasa Indonesia?

Theoretically, you can add any tag to nodes, ways or shapes on OSM. But because all of the objects on OSM are saved in international databases and cover the whole world, we need a consensus about how to make a tag. As an example, a hospital is still a hospital in England, France and even in Indonesia. If every country gives a tag with their own language it will be difficult and confusing to show the icon or symbol for different locations. Because OSM originated in England and English is a very common language all over the world, the English language is the language which is accepted for tagging in OpenStreetMap. However if you want to alter the presets menu to use your own language it is still possible.

Can we change the colour of nodes and ways and can we change the icons? How can we print?

You can change the colour of the objects in the Preferences menu. This is very useful especially when it is hard to see nodes on ways and shapes against a background. When participants ask about how to change the symbol or show the name of objects, you need to tell them that this program is for editing data and not to see the preview or result and print a map. All of the nodes and tags will be saved in a database, but you can use some other software to render your map to look better. For example, the map on openstreetmap.org is rendered, although there are many more examples. The difference between editing data and rendering on another software might be quite hard to understand by participants in the beginning.

What is the difference between presets and tags?

A tag is a piece of information that you attach to nodes, ways or shapes (polygon) to describe one of the attributes. Presets are a menu that simplifies the task of applying tags to an object.

Session 4

Using GPS

Time : 6 hours 15 minutes

Basic Competency

Use GPS to add data to OSM

Indicators
  1. Understand GPS and the types of GPS
  2. Turn on GPS
  3. Set up GPS
  4. Understand factors that affect GPS accuracy
  5. Understand tracks and waypoints
  6. Collect data using GPS
  7. Copy GPS data (tracks and waypoints) to computer
  8. Open waypoints and tracks in JOSM
  9. Upload GPS tracks using JOSM
  10. Edit OSM based on GPS data in JOSM
Outcomes
  1. Collect GPS field data in gpx format
Core Material

Using GPS

  1. What is GPS
  2. Turning on GPS
  3. Navigating the GPS
  4. Tracks and waypoints
  5. Saving location (waypoint)
  6. Turning on the Track Log
  7. GPS settings
  8. How to copy waypoints and tracks to computer
  1. Connecting GPS to computer
  2. Installing GPS driver
  3. GPSBabel program setup
  4. GPSBabel installation
  5. Copying tracks and waypoints
  6. GPS data in JOSM
  1. Uploading GPS tracks in JOSM
  2. Editing GPS data using JOSM
Activities
Activities Methods Tools

Introduction 10’

Explain the importance of the session, objectives, outcomes and activities of the session.

Talk Powerpoint presentation

Sharing 15’

  1. Any participants who have experience using smartphones may share with others their experience using GPS on their smartphone.
  2. Other participants respond and ask about experiences using GPS in smartphone.
Discussion

Powerpoint presentation

Module 4

Advice 20’

Present what GPS does and how it works on the smartphone. For example:

  • Phone receives signals from radio towers, GPS receives signals from satellites orbiting in space.
  • When receiving a signal, GPS can track absolute locations on earth.

Talk

Q & A

Powerpoint presentation

Module 4

Demonstration and Practice 180’

  1. Give a GPS to each pair of participants (if there are enough GPS). Go outside away from buildings to make sure the satellite signal is good.
  2. Participants should follow the following demonstrations:
  • How to turn on the GPS
  • Satellite page. Give brief explanation that when GPS is connected with three or more satellite you can know your current location. It is usually takes 30 seconds.
  • Go to other pages on GPS. Use X button to move to other pages.
  • Create a waypoint and explain what it is.
  • Look to the map page, try to zoom in and zoom out.
  • Turn on track log and explain how the track log works.
  • Look at the map page and walk so the participants can see the track.
  • Make another waypoint.
  1. Ask participants to practice using GPS in groups.

Demo

Practice

GPS (ideally one GPS for every two or three participants)

Paper and Pen

Second Practice 120’

Ask participants to walk to some roads around the training location in groups. Participants should collect waypoints and tracks correctly, make notes for waypoints in diaries or survey forms and make sketches of the area.

  1. Instruct every group of participants to follow the steps.
  2. After each group understands how to save the information, send each group to a different direction
  3. Ask every group to collect at least ten waypoints before returning to the training location.
Practice

GPS (ideally one GPS for every two or three participants)

Paper and Pen

Presentation 60’

Participants are asked to share their experience doing field practice.

Presentation  

Closing 15’

Q & A about experiences and problems in the field when using GPS.

Q & A  
Common Problems

Make sure you have batteries and extra USB cables

GPS devices burn through batteries relatively quickly, so it is a good idea to make sure every group has extra batteries when they go out mapping. Then when they return, they will need to move the data from GPS to the computer. It is best if every group has its own USB cable, which will enable faster copying of data to the computers.

All GPSes should be formatted the same

Before the training, make sure all GPS devices are formatted in the same way, which will prevent participants from getting confused. Many GPS settings can be changed, but when teaching a group it is best if they all look the same.

The key things to make sure of are that:

  • Page arrangement is same and in the same order: Main Menu, Track page, Map page, Satellite page
  • Coordinates are saved in decimal degrees
  • Units are in metres
  • Elevation has been calibrated correctly
FAQ (Frequently Asked Questions)

What projection does the GPS use for collected data?

A GPS can be set to record in different projections, but for our needs, the GPS must be set to record coordinates in geographic projection WGS84 (EPSG:4326).

How accurate is the GPS? How can the accuracy affect the data?

Consumer-grade GPS devices (such as the Garmin eTrex line) typically have an accuracy of between three and 15 metres. The Satellite page on the GPS indicates the accuracy when it is in use. For our mapping needs, inaccuracy less than 15 metres can be ignored.

Session 5

Field Papers

Time : 6 hours 15 minutes

Basic Competency

Use Field Papers to add data to OSM

Indicators
  1. Understand how to use Field Papers
  2. Make and print Field Papers
  3. Add information to Field Papers
  4. Scan and upload Field Papers to fieldpapers.org
  5. Open Field Papers in JOSM
Outcomes
  1. Print Field Papers as PDF for surveying
  2. Add field data to Field Papers
Core Material

Field Papers

  1. What is Field Papers
  2. Using Field Papers
  3. Making and printing Field Papers
  4. Mapping with Field Papers
  5. Scanning and uploading
  6. Field Papers in JOSM
Activities
Activities Methods Tools

Introduction 15’

Explain the importance of the session, objectives, outcomes and activities of the session.

Talk Powerpoint presentation

Q & A 15’

  1. Ask if participants have any experience using Field Papers and how they work
  2. Participants ask about how Field Papers works
  3. Show participants Field Papers website
Q & A

Powerpoint presentation

Field Papers examples

Module 5

Explanation 15’

Explains Field Papers, why it is useful and how it works.

Talk

Projector

Powerpoint presentation

Demonstrate and Practice 105’

Demonstrate: (and participants practice)

  • Mapping using Field Papers
  • Scanning and Uploading
  • Opening Field Papers in JOSM

Demo

Practice

Projector

Participants

Computer

Guide teams to make their own Field Papers, and then collect Field Papers from each team as PDF and print them. Practice Participants Computers Projector Printer Papers

Big Practice 225’

Divide area among groups

  1. Show participants a satellite picture of the area to be mapped today, over which you’ve drawn lines dividing it into sections.
  2. Do not create very large areas. The focus of this exercise is simply to introduce the survey method.
  3. Explain that together you will all make a fantastic map of this area today. Each team (partners) will be assigned one of these areas to map, and they will all go out to collect data, and later will add it to OpenStreetMap
  4. Teams will be equipped with a GPS, as well as one or two Field Papers for their area, which they can use to write on and take notes.
Practice Projector
  1. Each group goes out to map their area. Make sure all problems and questions about GPS and Field Papers have been answered and the participants understand what they should do. When they finish collect their Field Papers and add them to the website during the break.
  2. The easiest way to do this is to take photos of the Field Papers and upload them to the fieldpapers.org website.
 

GPS

Field Papers

Pen and Papers

Review/Q & A

Ask one participant from each team to tell how the survey went:

  • Their survey strategy
  • Benefits and weaknesses of their strategy
  • Problems or challenges that come from doing field surveys

After identifying common problems, discuss solutions for them to minimise participant problems.

Q & A

Microphone

Speaker

FAQ (Frequently Asked Questions)

How can we print large size maps, such as a poster for a community mapping project?

One way of doing this is by using QGIS, though the topic is not covered during this session. Basic QGIS training is provided in the next unit of this training, and from there users may be able to learn how to format and print large maps.

How do we scan Field Papers?

You can use a scanner, a mobile (smartphone) or a camera to take photos of Field Papers and then upload them to fieldpapers.org.

What should we do if uploading Field Papers is really slow or does not work at all?

Unfortunately, the Field Papers website is not always 100% working, especially when many people are using it as once. The process of uploading may take longer than your lunch break. If this becomes a problem during training, participants may simply use their Field Papers as handheld notes and you may show them how to use imagery and GPS data as reference layers.

Session 6

Editing OpenStreetMap with JOSM

Time : 7 hours 45 minutes

Basic Competency

Edit a map and add information to OSM using JOSM

Indicators
  1. Download OSM data in the area you want to edit
  2. Select layers
  3. Edit OSM data
  4. Edit and understand tags
  5. Upload OSM data
  6. Save OSM files
Outcomes
  1. Survey area mapped in OSM
Core Material

Editing OpenStreetMap with JOSM

  1. Exploring JOSM
  2. JOSM layers
  3. Editing OSM data
  4. Tags
  5. Uploading changes
  6. Saving OSM files
Activities
Activities Methods Tools

Introduction 5’

Explain the importance of the session, objectives, outcomes and activities of the session.

Lecture Powerpoint presentation

Review 20’

Remind participants of the basic operations in JOSM.

Ask participants about basic operations such as how to zoom in and out on the map and how to draw points, lines and polygons.

Lecture

Q & A

Powerpoint presentation

Module 6

Download current OSM data of the area you want to edit 20’

Instruct the participants to download OpenStreetMap data according to the region to be edited.

Practice

Computer Participant

Powerpoint presentation and projector

Setting layer JOSM 20’

Demonstrate:

  • Moving JOSM layers above and below one another
  • Hiding and showing layers
  • Enabling and disabling layers
  • Removing a layer
  • Setting layer transparency

Participants should practice after these tasks are demonstrated.

Demonstration

Practice

Computer

Participant

Projector

Editing OSM data 180’

  1. Ask participants to edit their respective regions, according to the information they collected.
  2. Continually walk around to each group to observe participants’ work, help answer questions and catch mistakes.
Practice

Computer

Participant

Projector

Tags 150’

  1. Show participants how to enter information (tags) to the objects instead of through presets in JOSM.
  2. Ask participants to practice adding tags directly

Demonstration

Practice

Computer

Participant

Projector

Upload OSM Data 45’

  1. Show participants how to upload the data that they have added to OSM.
  2. Ask participants to upload their data in accordance with their respective working areas. Each group is allowed one person only to upload to avoid conflicts that otherwise might occur.

Demonstration

Practice

Computer

Participant

Projector

Save OSM file 25’

Show participants how to save OpenStreetMap files on their laptops. Participants should be reminded not to let too much time pass between downloading and uploading OSM data.

Demonstration

Practice

Computer

Participant

Projector

FAQ (Frequently Asked Questions)

Should we use a point or a polygon to identify a restaurant in a mall?

You should use a point. Polygons are used if you clearly know the shape of a building or area. If you want to identify a landmark inside a larger polygon, such as a building it is better to use a point.

How do we map a bridge in JOSM?

To mark a bridge, you need to split the lines which marks the bridge (usually a way) on both sides of the bridge. If you have a road that crosses a river, you can click on the dots on the side of the river and press ‘P’ on the keyboard to split the line at that point. Then the selected line can be tagged as bridge using the presets menu.

How do we digitise a building to have a perfect rectangle shape?

It is not easy to make a perfect rectangle only using your hand. Luckily there are tools that can make the proper angle at each corner of a polygon. Select the polygon (building) and press Q on the keyboard to shape that polygon.

The map on OpenStreetMap does not show edits immediately. What can we do?

Usually it will take about 5-10 minutes to see your changes appear on the OpenStreetMap website. If you can not see the changes on OpenStreetmap after that time it may be because your browser is still caching the old map. In this case you should reload the page in your browser. If this is not successful you may need to delete the cache in your browser. For example, in Google Chrome go to Tools ‣ Clear Browsing Data. Click Empty the cache and click Clear browsing data. Then refresh the page again and your edits should appear. Sometimes it still can take a while until changes to OpenStreetMap appear on the main page.

Session 7

Imagery Offset

Time : 90 minutes

Basic Competency

Correct imagery offset

Indicators
  1. Understand the definition of imagery offset
  2. Understand components of imagery (resolution and georeference)
  3. Explain how imagery offsets occur
  4. Fix imagery offset
Outcomes
  1. Able to correct imagery offset
Core Material

Imagery Offset

  1. Definition of imagery offset
  2. Imagery resolution and georeferencing
  3. Imagery offset
  4. Fixing imagery offset
Activities
Activities Methods Tools

Introduction 5’

Explain the importance of the session, objectives, outcomes and activities of the session.

Lecture Powerpoint presentation

Explain Imagery 60’

Explains about imagery, including resolution, georeference, why imagery offset occurs and how to fix it.

Lecture

Powerpoint presentation

Module 7

Add plugin imagery_offset_db in JOSM 20’

  1. Ask participants to add imagery_offset_db plugin from the Plugins list in the Preferences menu.
  2. Guide the participants step-by-step on how to utilise the plugin.
Practice

Computer

Participant

Projector

Closing 5’

Discussion and Questions

Q & A  

Session 8

Getting OSM Data

Time : 90 minutes

Basic Competency

Get OSM data in a specific format to be analysed further in Geographic Information System (GIS) software

Indicators
  1. Download OpenStreetMap data from Geofabrik website
  2. Download customised OpenStreetMap data using HOT Exports
Outcomes
  1. Able to access pre-processed vector files for use in Beginner QGIS training
Core Material

Getting OSM Data

  1. OpenStreetMap data from Geofabrik Website
  2. OpenStreetMap data according to region and selecting attributes with HOT export tool
Activities
Activities Methods Tools

Introduction 5’

Explain the importance of the session, objectives, outcomes and activities of the session.

Lecture

Powerpoint presentation

Module 9

Download OSM vector files from Geofabrik website 20’

  1. Shows how participants can get OSM data in shapefile format through the Geofabrik website that can be processed by QGIS and InaSAFE.
  2. Ask participants to download vector files themselves via the Geofabrik website.

Lecture

Practice

Computer Participants

Projector

Download OSM vector files via HOT Export website 30’

  1. Demonstrate
  • How participants can get OSM data in shapefile format through the HOT Export website that can be processed by QGIS and InaSAFE software
  • The difference between Geofabrik and HOT Export websites
  1. Ask participants to download vector files themselves via the HOT Export website.

Lecture

Practice

Computer

Participants

Projector

FGD 20’

Topics for discussion are:

  • How will OSM will be useful for participant activities?
  • Difficulties in using OSM for participants. For example, some common difficulties are the unavailability of GPS devices and satellite imagery or slow internet.

Do not provide solutions directly to the participants. Note the comments and needs of the participants so that it can be submitted to the training organiser or relevant partner to be followed up on (for example, set aside a budget for the procurement of GPS).

Lecture

FGD

Projector

Microphone

Speaker

Closing and Follow-up 15’

Demonstrate:

  • How participants can discuss through social media such as Facebook or Twitter
  • How participants can join the talk-id mailing list
Demonstration  
Common Problems

HOT Exports takes a long time to process a job

The HOT Export server uses a first come - first serve strategy. That means the server serves the user who executes the first data request first. The size of the desired area also affects the processing time. The greater the total area the longer the process will take.