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==Tunnels== | ==Tunnels== | ||
[[File:PietHeinTunnel.png|right|250px]] | [[File:PietHeinTunnel.png|right|250px]] | ||
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===Road attribute=== | ===Road attribute=== | ||
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Use as [[Elevation]] a negative value, like -1.<br> | Use as [[Elevation]] a negative value, like -1.<br> | ||
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The complication with navigation through tunnels is that generally they obscure [[GPS]] communication and cell phone data connections. The Waze servers track each mobile device (driver) as they enter and exit each segment along their route. With the start and end times of each segment, the Waze server can calculate the average speed of drivers through that segment. This is how the Waze server can determine if the tunnel traffic is flowing normally, or if there is a slowdown of the vehicles in the tunnel even without the GPS tracking information while inside the tunnel. | The complication with navigation through tunnels is that generally they obscure [[GPS]] communication and cell phone data connections. The Waze servers track each mobile device (driver) as they enter and exit each segment along their route. With the start and end times of each segment, the Waze server can calculate the average speed of drivers through that segment. This is how the Waze server can determine if the tunnel traffic is flowing normally, or if there is a slowdown of the vehicles in the tunnel even without the GPS tracking information while inside the tunnel. | ||
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===Place=== | ===Place=== | ||
[[File:Tunnel-bord.png|right|120px]] | [[File:Tunnel-bord.png|right|120px]] | ||
It is possible to add a [[Places|Place]] with [[Place_categories#Transportation|category]] Tunnel. So you can use a tunnel as destination.<br> | It is possible to add a [[Places|Place]] with [[Place_categories#Transportation|category]] Tunnel. So you can use a tunnel as destination.<br> | ||
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===Further reading=== | ===Further reading=== | ||
Versie van 21 jan 2021 16:20
Tunnels
Road attribute
Tunnels are mapped as ordinary segments, with the attribute Tunnel checked.
Use as Elevation a negative value, like -1.
The complication with navigation through tunnels is that generally they obscure GPS communication and cell phone data connections. The Waze servers track each mobile device (driver) as they enter and exit each segment along their route. With the start and end times of each segment, the Waze server can calculate the average speed of drivers through that segment. This is how the Waze server can determine if the tunnel traffic is flowing normally, or if there is a slowdown of the vehicles in the tunnel even without the GPS tracking information while inside the tunnel.
Further reading
- Global wazeopedia Tunnels page.
- More about other Road Aspects.