Book Image

OpenStreetMap

Book Image

OpenStreetMap

Overview of this book

Imagine being able to create accurate maps that look how you want them to, and use them on the Web or in print, for free. OpenStreetMap allows exactly that, with no restrictions on how or where you use your maps. OpenStreetMap is perfect for businesses that want to include maps on their website or in publications without paying high fees. With this book in hand you have the power to make, alter, and use this geographical data in a collaborative way from anywhere on the Earth.OpenStreetMap was started because most maps you think of as free actually have legal or technical restrictions on their use, holding back people from using them in creative, productive, or unexpected ways. This book will allow you to take control of your own maps and use them smoothly. This book introduces the reader to the OpenStreetMap project and shows you how to participate in the project, and make use of the data it provides. No prior knowledge of the project is assumed, and technical details are kept to a minimum.In this book, you'll learn how easy it is to add your neighborhood to OpenStreetMap using inexpensive GPS equipment, or even no GPS at all. You'll find out how to communicate with other mappers working in the same area, and where to find more information about how to map the world around you.Once you have your area mapped, you'll learn how to turn this information into maps, whether for use in print or online, large or small, and with the details you want shown. The book describes several rendering methods, each suited to different types of map, and takes you through a tutorial on each one.
Table of Contents (17 chapters)
OpenStreetMap
Credits
About the Author
About the Reviewers
Preface
4
How OpenStreetMap Records Geographical Features
Index

Surveying techniques


You can gather traces while going about your normal business, or you can make trips specifically to do surveying for OpenStreetMap. The amount of detail you'll be able to capture on a normal journey will be far lower than during a survey, but there are still some techniques you can use to record as much detail about your surroundings as possible.

The first technique to consider is your mode of transport while mapping. For some types of features, there is only one choice: For a motorway you need to use a vehicle, and for narrow footpaths you'll need to walk.

For everything in between, you need to use some judgment. Many existing mappers have found that for suburban and residential areas, a bicycle is the most efficient way of mapping. It's faster than walking, and cheaper than a car. A bike is also easier to turn around when you reach a dead end, and you can dismount and walk along paths where cycling isn't allowed.

Making your survey comprehensive

To make sure you map an...