Segment Properties
Properties relevant for most Road typesː
- Page on Street and City names.
- Page on Speed limit.
- Page on Lane Guidance.
- Page on House numbers.
- Page on New Housing Development.
- Page on Elevation.
- Page on Lock level.
- Page on Nodes.
Unpaved
Check the Unpaved attribute for any by regular car driveable road which is not paved.
The app has a setting for using Unpaved roads. The default is "Don't allow". Other values are "Allow" and "Avoid long ones".
If a road is unpaved, only driveable by a 4x4 and really should be mapped, than - in this exceptional case - the Off-road road type may be used.
Minimum segment length
A segment should not be shorter than 6 meters.
Headlights required
The headlight warning is given each time in the app when a route is started that passes a segment with Headlight required checked. This warning only makes sense in the few countries for which this warning was developed. Better leave this attribute unchecked.
Average Speed Cameras
Check on all road segments where average speed cameras are operational the 
Average Speed Camera check boxes. If a ASC zone starts or ends in the middle of an existing (longer) segment, you may have to add a new node (by splitting the segment), to get the ASC notifications to start / end at the correct locations. If the start/end is approximately 20m from an existing node, this is not necessary.
If the cameras are already placed but not yet operational use dummy camera's.
Currently , due to a bug, a Average speed control should always start at the A point of a segment. In case of a two way average speed control it may be necessary to split a segment in two parts, change the A and B points of the newly created segment with as result that from both ways the average speed control can be defined on a segment starting with an A point. The A-point triggers the warning message.
Aspects
- Page on Junction Arrows
- Page on Junction Box
Keep It Simple/Stupid (KISS)
"As simple as possible, as complex as necessary"
KISS is keeping the road geometry as simple as possible, without losing the essential driving instructions.
More info, see the KISS page.
Filter lanes
Filter lanes are not mapped as separate segments but can be configured as Lane Guidance.
Filter lanes, as separate segments, don't fit the KISS principle because they are the cause of very complex situations that are hard to manage, while they don't add a lot of value in most routing instructions. Short segments and extra splits can have a negative influence on routing (extra penalty, incorrect average speeds, ...).
Of course, there is always an exception. If the choice of a filter lane must be made more than 50 meter before coming to the crossing AND the main road and filter lane are divided by obstacles (concrete blocks, ...), it should be mapped.
Splitting roads
The standard representation for any roadway is a single 2-way segment, even if the physical roadway is divided.
A road may be divided when the GPS tracks show a clearly definable and continuous gap (blank area) between the color-by-azimuth arrows at the 100m 500ft zoom level.
There are a few extra considerations when the road has possible destinations / addresses.
Een straat met fysiek gescheiden rijbanen met adressen/bestemmingen - denk aan parkeren in de centrale as, gescheiden door een sloot, groenstrook of een andere hindernis - kan op verschillende manieren worden getekend. Belangrijkste overweging bij de keuze: de beste navigatie naar, zo mogelijk, de voordeur van je bestemming.
Twee mogelijkheden:
- Gescheiden 1-richtingsverkeer segmenten met verbindingswegen ertussen.
- 2-richtingsverkeersegmenten met U-turnpijlen op groen bij de verbindingswegen. (De KISS variant)
Overwegingen die meespelen bij het kiezen tussen beide varianten:
Gescheiden 1-richtingsverkeer segmenten
Voordeel: kaartbeeld in de app komt overeen met de realiteit.
Nadeel: druk kaartbeeld in app en WME, (te) weinig ruimte voor de verbindingsstukken in verband met de minimum segmentlengte van 6 meter, U-turn preventie kan optreden bij hogere wegtypes.
KISS variant
Voordeel: rustig kaartbeeld in app en WME, geen last van U-turn preventie.
Nadeel: kaartbeeld wijkt af van het straatbeeld, edit-technisch wat lastiger, groene U-turnpijlen kunnen editors op het verkeerde been zetten. Navigatie naar bestemming zonder rekening te houden met eventuele problemen om de voordeur van je bestemming te bereiken vanwege een blokkerende rijbaanscheiding.
Van belang bij keuze van optie is vooral ook:
- maakt het uit van welke kant ik moet komen aanrijden?
- kan ik dan vanaf de zijde waar ik aankom dan nog goed bij mijn bestemming komen? Of moet ik eerst nog hekjes/berm/slootjes afrastering overstappen?
Zo ja, dan weg splitsen. Zo nee, dan juist niet splitsen. Want waarom helemaal een blokje om worden gestuurd terwijl er gewoon rechtstreeks heen gereden kan worden.
Roundabouts
If you want to add a Roundabout, you firstly draw the roads as a normal crossroad, but don't connect the roads/segments. Secondly you draw the Roundabout and WME will connect the crossing roads automatically.
A Roundabout must always get a city name but never a streetname. The reason for this has to do with the navigation instructions and road announcements. A Roundabout always gets categorized as the type of the highest connected road.
See the Roundabout page.
Shopping streets
Shopping streets only allowed for pedestrians (and cyclists) with the exception of certain hours loading/unloading, are defined as Private Roads.
Double left and double right
The Waze routing algorithm prevents double-left or double-right turns by using an extremely large U-turn penalty when these conditions are met:
- Three segments: The U-turn is a reversal of driving direction through three segments: an incoming segment (A), a single median segment (B) and an outgoing segment (C).
- Short median: The median segment (B) is shorter than or equal to 15 meters.
- In/out parallelism: The in and out segments (A and C) are within ±5° of parallel to each other. If the median segment isn't straight calculate the degrees as if an imaginary straight segment was connectining the A and C segments.
- Not all the A, B and C segments are Street.
Example / see picture: Driving from left to right on the top street (A) with destination towards the west requires a reversal of driving direction. When the median segment B (red arrow) is 15 meters or less the app will navigate over the lower street towards the west. Only if this median segment is 16 meters or more the app will navigate over the bigger road in the middle (C).
See also the global page on Routing penalties/Controlling U-turn penalties