Fixing Reverse Connections (RevCons)

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Re: Fixing Reverse Connections (RevCons)

Postby voludu2 » Tue Jun 16, 2015 6:01 pm

Good.
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Re: Fixing Reverse Connections (RevCons)

Postby voludu2 » Sun Jun 21, 2015 1:03 am

Then how about with this addition:
"Reverse connectivity," often abbreviated "revcon" or "RevCon," happens when a hidden turn is allowed going the wrong direction into a one-way street (against traffic), or leading the wrong direction out of a one-way street. Recent changes to the Waze routing engine mean that revcons are not important. Editors should not fix them.

A connection (turn allowed) from one [[Glossary#segment|segment]] to another via a [[Glossary#junction|junction]] which goes against the directionality of at least one of the segments is called a Reverse Connection, and these segments have "reverse connectivity." Though it is hard to see this in the editor, two segments of a one-way road connected together could have an allowed "turn" in the opposite direction of the flow of traffic, or directionality, of the segments. This can be seen in the editor by turning both segments to 2-way and then seeing the location of the allowed turns.

Earlier versions of the Waze routing engine treated revcons as possible routes where none was allowed. Scripts, such as [[Community Plugins, Extensions and Tools#Highlights for Landmarks and_Segments|Color Highlighting]], WME Toolbox, and WME Validator featured tools to highlight and to eliminate reverse connections.

Although reverse connections have no effect on routing, they can highlight problems on the map, such as a segment accidentally set one way the wrong way or one way when it ought to be two way.
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Re: Fixing Reverse Connections (RevCons)

Postby voludu2 » Sun Jun 21, 2015 9:44 am

So changing guidance for this might be premature?

@nzahn1 -- I see your point. What I wrote had a mixed message anyway. It says it is not important to the Waze routing, but could be important for spotting actual editing errors. The guidance is unclear.

Anyone trying to use them as evidence of a clean map will want to clean them up so they don't trip over the same revcons repeatedly during inspections. But we are telling editors not to waste time to clean them up, which also implies not posting unlock/update requests to clean them up.
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Re: Fixing Reverse Connections (RevCons)

Postby voludu2 » Thu Jun 25, 2015 5:51 am

Then how about with this slight change:
"Reverse connectivity," often abbreviated "revcon" or "RevCon," happens when a hidden turn is allowed going the wrong direction into a one-way street (against traffic), or leading the wrong direction out of a one-way street. Recent changes to the Waze routing engine mean that revcons are not important. Editors do not need to fix them.

A connection (turn allowed) from one [[Glossary#segment|segment]] to another via a [[Glossary#junction|junction]] which goes against the direction of at least one of the segments is called a Reverse Connection, and these segments have "reverse connectivity." Though it is hard to see this in the editor, two segments of a one-way road connected together could have an allowed "turn" in the opposite direction of the flow of traffic, or directionality, of the segments. This can be seen in the editor by turning both segments to 2-way and then seeing the location of the allowed turns.

Earlier versions of the Waze routing engine treated revcons as possible routes where none was allowed. Scripts, such as [[Community Plugins, Extensions and Tools#Highlights for Landmarks and_Segments|Color Highlighting]], WME Toolbox, and WME Validator feature tools to highlight or to eliminate reverse connections.

Although reverse connections have no effect on routing, they can highlight problems on the map, such as a segment accidentally set one way the wrong way or one way when it ought to be two way.
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Re: Fixing Reverse Connections (RevCons)

Postby voludu2 » Mon Jun 13, 2016 2:19 pm

Then how about with this slight change to the slight change:
"Reverse connectivity," often abbreviated "revcon" or "RevCon," happens when a hidden turn is allowed going the wrong direction into a one-way street (against traffic), or leading the wrong direction out of a one-way street. Recent changes to the Waze routing engine mean that revcons are not important. Editors do not need to fix them.

A connection (turn allowed) from one [[Glossary#segment|segment]] to another via a [[Glossary#junction|junction]] which goes against the direction of at least one of the segments is called a Reverse Connection, and these segments have "reverse connectivity." Though it is hard to see this in the editor, two segments of a one-way road connected together could have an allowed "turn" in the opposite direction of the flow of traffic, or directionality, of the segments. This can be seen in the editor by turning both segments to 2-way and then seeing the location of the allowed turns.

Earlier versions of the Waze routing engine treated revcons as possible routes where none was allowed. Scripts, such as [[Community Plugins, Extensions and Tools#Highlights for Landmarks and_Segments|Color Highlighting]], WME Toolbox, and WME Validator feature tools to highlight or to eliminate reverse connections.

Although reverse connections currently have no effect on routing, they can highlight problems on the map, such as a segment accidentally set one way the wrong way or one way when it ought to be two way.
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Re: Fixing Reverse Connections (RevCons)

Postby voludu2 » Tue Jun 21, 2016 6:59 pm

Ok then how about the slightly-less-repetitive:
"Reverse connectivity," often abbreviated "revcon" or "RevCon," is a connection (turn allowed) from one [[Glossary#segment|segment]] to another via a [[Glossary#junction|junction]] which goes against the direction of at least one of the segments. This can be seen in WME by turning both segments to 2-way and then seeing all the allowed turns. Revcons make no difference to the Waze routing engine. Editors do not need to fix them.

Earlier versions of the Waze routing engine treated revcons as possible routes where none was allowed. Scripts, such as [[Community Plugins, Extensions and Tools#Highlights for Landmarks and_Segments|Color Highlighting]], WME Toolbox, and WME Validator feature tools to highlight or to eliminate reverse connections.

Although reverse connections currently have no effect on routing, they can highlight problems on the map, such as a segment accidentally set one way the wrong way or one way when it ought to be two way.
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Re: Fixing Reverse Connections (RevCons)

Postby voludu2 » Sat Jun 25, 2016 11:44 pm

Can this glossary discussion move to the glossary topic, where some kind of discussion about the glossary page can result in Improvements to the glossary page?

In the meantime -- can this discussion on rewording of revcon guidance proceed, or should it be put on hold until the discussion of glossary terms for nodes, junctions, and geometry points/handles is completed?
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