11. Navigation satellites - pros and cons
Pro |
Con |
---|---|
Can be very accurate - 30cm or better with the right equipment | It can be fiddly to set up a destination. Dangerous to try and set it up whilst driving |
No need for a person to use a paper map | Sat Nav can sometimes lead you down unsuitable roads - use common sense as well. |
Can offer 'points of interest' if you are a tourist | May not recognise your destination |
Can offer different types routes, such as Fastest, Motorway maximised, Scenic etc | Tall buildings or forests could block the signal |
Time saved by not having to plan an unfamiliar route | Need to have map-reading skills (and a paper map) in case the Sat Nav stops working |
Can set 'Home' so no need to work out the way back as well. | Storms and bad weather can affect accuracy |
Can have maps of other countries as well as the UK | Maps need to be updated to keep track of road changes |
challenge see if you can find out one extra fact on this topic that we haven't already told you
Click on this link: GPS system