Anders Laukvik - 2007
Maps & GPS
MAPS & GPS
Anders Laukvik - 2007
Maps & GPS
Maps• Maps are a copy of a given terrain in a
fixed scale– 1:250 000 1:100 000 1:50 000
• Given symbols represent objects on ground
• Grid lines shows landscape ascending / descending – Contour interval
Anders Laukvik - 2007
Maps & GPS
Maps• Standard colors
– Red = Roads Green = Vegetation– Black = Symbols Brown = Contour
• 3 ways to the North– Magnetic, True, Grid
Anders Laukvik - 2007
Maps & GPS
Reading a Map• Try always to know where you are, the
location of where you are going and how to get there.
• From where you are. Pay attention to details like river crossing, bridges, hills, road bends, etc that you have to pass.
• Remember the quickest way is not always in a straight line.
Anders Laukvik - 2007
Maps & GPS
Giving and receiving positions
• Clear text– I am in Kuala Lumpur..– I am 500 meters east of Jalan Ampang, by the
bridge. – N 32h 16’ 26” E 5h 12’ 34”
Anders Laukvik - 2007
Maps & GPS
Longitude and Latitude
Anders Laukvik - 2007
Maps & GPS
GPS
Global Positioning System
Anders Laukvik - 2007
Maps & GPS
GPS – How does it work?• Picks up signals from orbiting navigations
satellites and calculates position.• More satellites, the faster and more
accurate lock.• Tells your location according to your
decision of “Datum”
Anders Laukvik - 2007
Maps & GPS
Where am I….
Anders Laukvik - 2007
Maps & GPS
Where to go….• When planning our trip
– Same datum on GPS and Map– Plot “Waypoint (s)”– Put waypoints together in a “Route”
• Remembering places– “Mark”– Adjust waypoint with logical name
Anders Laukvik - 2007
Maps & GPS
How to go…• Direct line• Always remembering the waypoint• Does not se obstacles• Track and Direction….
Anders Laukvik - 2007
Maps & GPS
How am I doing….
Anders Laukvik - 2007
Maps & GPS
In Traffic
Anders Laukvik - 2007
Maps & GPS
When you arrive…• So you know
Anders Laukvik - 2007
Maps & GPS
”The trail was so hard….”
Anders Laukvik - 2007
Maps & GPS
Lost your keys?• Back-tracker….
Anders Laukvik - 2007
Maps & GPS
MERCY GPS’s
Garmin Etrex VentureGarmin Etrex
Anders Laukvik - 2007
Maps & GPS
What is on the market….