- 1 Introduction
- 2 Road types
- 3 Naming Conventions
- 4 Dual Carriageways
- 5 Ramps (to/from Motorways and Dual Carriageways)
- 6 Lay-bys
- 7 Railways
|This forms part of UK Editing Best Practice. Please read in conjunction with the USA global page on Road types, which has more specific information about each Road type and their characteristics.|
Using the correct Road type and naming of segments is a key part of mapping in Waze. Road type influence route planning, particularly on long journeys where Waze will prioritise the major Road types. The naming of segments give users a consistent experience and can also influence routing and detour mechanisms.
|Be aware of the WME language setting! This article uses localised names which can be found when using the English (UK) language.|
The following convention should be followed where possible, although it is acknowledged that you may need to deviate from it in some circumstances.
|Waze Road Type||UK Road Types|
|All Motorway & Motorway class A roads (locked to L5) M60 A1(M)|
|A-class roads that are classified as Primary Routes (locked to L4) A4600|
|Non-primary A-class roads A614|
|B-class roads and unclassified roads carrying heavier traffic, often seen on Ordnance Survey maps in yellow or orange. B547|
|Urban Streets, low traffic rural roads|
|DO NOT USE - This Road type is currently not deemed useful for mapping in the UK (See UK forum discussion )|
|Road with no access for the general public, public roads with legal prohibition on through routing in both directions (private road sign, no motor vehicles except for access sign, or a closable gate).|
|Roads within a car park, or other places where we don't want Waze to monitor speed and potentially generate a traffic jam report, in particular petrol station forecourts. Read more on car park mapping on the UK Car Parks page.|
|Unsurfaced road which is often impassable for normal cars and only suitable for 4x4 vehicles.|
Unpaved checkbox - This attribute can be selected for all Road types but should only be applied to Street Road type and below. This checkbox can be applied to segments that cover roads that are unsurfaced or of poor construction but is still passable by a normal car. Users can avoid roads marked with this attribute applied within the App settings. FORDS ***
Non-drivable - Walking Trails are a group of non-drivable Road types available in the WME found under the Road menu. User experience can be improved by using these appropriately, you can read more when to use these Road types on the UK Footpaths page.
Primary Route Network
The primary route network (PRN) designates roads between places of traffic importance across the UK, with the aim of providing easily identifiable routes to access the whole of the country. Primary routes are marked green on most road maps and road signs are green with white and yellow text. The WMEOpenData extension for Firefox and Chrome can overlay this data directly within the editor.
As with any rule, there will be some exceptions. There are two specific scenarios which are allowed to deviate from the Ordnance Survey (OS) map:
- A roads that connect between motorway or PRN networks, then it should also be Major Highway
- A section of primary road is restricted to some traffic, and there is another primary route nearby, then it can be demoted to Minor Highway
Exceptions should be discussed on the forum and documented below, and can be locked to a higher level.
|A1080 London Colney Bypass||Upgraded to Major Highway - Links the A414 to the M25|
|A2, Chatham||Downgraded to Street - The High Street is restricted to buses only. The A2 New Rd to the south is the preferable route.|
|A20, Maidstone||Downgraded to Street - Not PRN. Several bus/taxi only roads adjacent to the A20 .|
|A256, Dover||Downgraded to Minor Highway - The entire A256 road network south of A2 is not PRN. See Sabre for details.|
|A243 Leatherhead Bypass||Upgraded to Major Highway - Links the A24 with the M25 junction.|
|A3 Hope St, Portsmouth||Upgraded to Major Highway - The main Out of City route is signposted northbound along Hope Street. Consequently Marketway & Commercial Rd have been downgraded to Primary Street.|
|B306, Roehampton||Upgraded to Major Highway - Turning right from A205 to A306 is only possible via this small loop of B road.|
|A3216, Battersea||Upgraded to Major Highway - Shown as PRN in the OS data, but not signed as a primary route in Google Streetview imagery (May 2018). Would benefit from site visit to confirm current status.|
|A4146 / A509, Milton Keynes||Upgraded to Major Highway - Links the A5 to the A421 to the M1|
|A43, Corby / Kettering||Upgraded to Major Highway - Relatively new bypass that became the A43 , Consequently, the old route, now the A4300 and A6183 have been downgraded to Minor Highway.|
|A45, Weedon Bec||Upgraded to Major Highway - This new bypass has been designated the A45 . The old route, has been downgraded to Primary Street.|
|A46, Grimsby||Upgraded to Major Highway - Although not shown by OS as PRN this short length of A46 links with the A16 . Road has green backed signs along route.|
|A460, Cannock||Upgraded to Major Highway - Newer A460 bypass replaces older route, consequently the now designated A4601 has been downgraded to Minor Highway.|
|A527, Newcastle Under Lyme||Upgraded to Major Highway - This section of road links the A527 with the A500 . The old route, now designated the B5370 , has been downgraded to Primary Street.|
|A56, Bury||Upgraded to Major Highway - This section of road joins the A56 and the A58|
|A577, Atherton||Downgraded to Minor Highway & Street - Eastern and southern section pass through a pedestrianised zone. Consequently Bag Ln at the western end, which has green backed signs, has been upgraded to Major Highway to complete routing in this area.|
|A58, Bury||Upgraded to Major Highway - Links the A58 to the A56 to create equal routing right & left respectively.|
|A6, Kegworth||Upgraded to Major Highway - This new bypass road has been designated the A6 . The old route, has been downgrade to Primary Street.|
|A6, Loughborough||Upgraded to Major Highway - The central area of Loughborough has been pedestrianised and the A6 has been diverted along an upgraded relief road.|
|A6097, Newton (Notts)||Upgraded to Major Highway - Following the dueling and realignment of the A46 , the spur of the A6097 and Fosse Way have been upgraded to ensure continuous routing at this junction due to its current layout.|
|A614, Howden||Upgraded to Major Highway - Links the A63 , A614 with the M62|
|A617, Mansfield||Upgraded to Major Highway - Although not shown on OS maps as PRN, this bypass road has green backed signs and therefore has been upgraded.|
|A664, Manchester||Downgraded to Minor Highway - Google Streetview (May 2018) of A664 Rochdale Rd shows it has white backed signs and no longer part of the PRN.|
|A665, Manchester||Upgraded to Major Highway - A665 Miller St now one way, the opposite direction has been promoted to ensure continuous routing.|
Roads with number
Classified road in the UK are known by a single letter and number combination which should be included in the segment name so that Waze instructions include identifying information. When naming dual carriageway segments, the addition of a cardinal direction should be included to ensure clear instructions are given and useful incident reports. The segment should be named in the following format;
<Letter & Number> (<Direction>) - <Name>
M45 (E)Motorway with cardinal direction
A1(M)Motorway class A Road, note no spaces are used
A7 - Old Dalkeith RdA Road with local name
A2 (W) - Dover RdA Road with cardinal direction and local name
Andover StRoad with local name
The UK has 3 classifications of roads; Motorways (M), A Roads, and B Roads. All other roads are unclassified. You may discover that local authorities maintain a database of roads they manage and use C, D, and U labels. These are internal labels only and should never be shown on public signs, they should not be added to segment names.
When naming Motorway segments, the City field should be set as None, this prevents City name smudge across the map.
Major junctions, particularly on motorways, should be labelled with a landmark. Under no circumstances should the road nae or city name fields of a segment be used for naming of a junction.
Ramp names to be short, useful and unambiguous. Names should not include Junction to nor Entry to. Cardinal directions (N, S, E, W) should only be included if they are included on signs and provide clarity. Like other abbreviations, the > character can be used, and is read out as towards, this should be used only if needed. Entry and Exit should be considered equal for the purposes of naming, and should be named to give the most useful instruction to the driver. Ramps should not have a City name, this helps prevent city smudge.
Junctions with numbers
- All segments from numbered junctions should be mapped as Ramps to ensure exit instructions are given
- The name should begin with the exit number and then the name of the road it leads to, ideally without cardinal directions
- When motorways split, short wayfinder ramps should be used so that these names don't appear in the App
- Do not include junction numbers on entry ramps.
J<number> to <simple road name>
J4 to A464
Junctions without numbers
- If a ramp connects directly to exactly 1 other road, then it can be left unnamed, the instructions will naturally take on the name of the next segment
- It may be desirable to name the ramps more simply to remove cardinals or road names
- If the ramp connects to a roundabout, then an unnamed segment will often give optimal instructions. If the routes away form the roundabout are not signed from the main road the ramp should be named to match the exit signs.
<simple road name>
A1 - Great North Road
- Where a ramp forks into two directions, then the ramp names should include cardinals (if signed) or towards a city based on the signage
- If a city name is used only one city from the directional sign is to be used, preferably the one which is listed first
- On the M25, where relevant, directions to Heathrow or Gatwick should take precedence
- If the section of ramp before a fork is particularly short, then the preceding segment can be left unnamed with any junction number written in the forked segments
- This does result in longer announcements, so should be avoided if possible
- Where both directions of a road are connected to a roundabout, then ramps can be disambiguated using > city instead of cardinals, as per the signage.
<simple road name> (<cardinal direction>)
<simple road name> > <city name>
Junction > <city name>if connecting road has no name / number
M62 > Manchester&
M62 > Hull
Roundabout segments should remain unnamed. If the roundabout does have a proper, signposted name, then this can be labelled using an Area Place, with category set to Junction/Intersection, that fills the centre of the roundabout. This only applies to big roundabouts that are larger than 30 metres.
For further advice on editing roundabouts, see Editing Junctions and Roundabouts
Due to the size of most devices it is advantageous to keep on screen text to a minimum. When naming segments the following abbreviations should be used to conserve space. Each will be expanded by the Text-To-Speech (TTS) engine and voice instructions will read aloud the full word, Ave will be read as Avenue, etc.
When naming a segment the first word word in the name should never be abbreviated, nor should names that only include single words (excluding The). Green Street should be written as Green St and The Boulevard be written in full. Multiple abbreviations in the same segment name can be used where appropriate, Aston Boulevard West can be written as Aston Blvd W.
- Should you require TTS to read a letter, such as Car Park E, place a period (.) directly after the letter.
- J, used for road junction numbers, is the only abbreviation that can lead a segment name.
- The period (.) in the abbreviation of Saint is important otherwise it will be read as Street.
Bypass or By-pass?
The following convention should be followed where possible, although it is acknowledged that you may need to deviate from it in some circumstances.
When to Split
A road should be split into be 2 one-way roads if any of the following conditions are met:
- The central reservation is > 5m
- There's a visible gap between average of all GPS traces
- It is split by physical barrier (Concrete, Armco, pedestrian barrier etc)
Pedestrian refuges and painted road separation (cross hatching that can be driven over) should not normally be split. Be aware there are a lot of these that were created as split roads during the UK Base-map import, these usually need merging to be a single two-way road.
Ramps (to/from Motorways and Dual Carriageways)
Where should I start the sliproad?
For best navigation and routing advice, sliproads leading:
off a Motorway or Dual Carriageway should be placed to start where
- The lane begins to divide (in the case of 3/2/1 markers)
- There is a gantry over the carriageway, where the 1 mile, 1/2 mile etc finishes. This will usually be the last gantry before the actual junction and will be the one without a distance marker on it
on to a Motorway or Dual Carriageway should be placed where
- the road first joins the adjoining road, i.e. just after the chevrons/lane dividers
- Lay-bys should only be included where there is significant separation from the main road (e.g. grass, trees or a physical barrier) in a similar way to deciding if a road is dual carriageway.
- Routes in and out should be mapped with roads of "Parking Lot Road" type, with appropriate directions and turns.
- The Lay-by road should have no city name and the road name set to "[P]".
- A Landmark is not required for lay-bys.
This example is only separated by the distance between the (N) and (S) carriageways which is the minimum that you should map. Note that the "parking lot road" is mapped over the area that vehicles park on to improve separation:
(Note: this example is zoomed in closer that the previous two!)
Railway lines should be drawn in as Railroad type roads, particularly if there are other streets nearby. They appear in the client, and they keep Wazers on trains from polluting the local speed data.
Tracks should be drawn as simply as possible - they do not need to be accurate out in the country where no one can see them, and it is not necessary to map individual tracks through a station.
- City: No City
- Name: No Name
- Type: Railroad
- Direction: Two way
- Level: Ground, unless actually going under or over over another road
- Lock: 3
Railroad segments can be connected to the road network at level crossings, without any risk of Waze routing drivers onto the tracks. The extra granularity of segments at the crossing provides more accurate routing information. All turns should be enabled (no red arrows please).
- "old" roads, with addresses along them, are broken by segment nodes each side of a railway bridge. This enables Waze to navigate to addresses adjacent to the bridge when Network Rail close the road for engineering works.
- "new" roads, with no addresses along them, are not broken at railway bridges, since such roads are always closed junction to junction, and intermediate nodes are a nuisance (sometimes necessary for speed limit changes, but not for bridges).
Railways which are underground (i.e. through tunnels) must not be mapped.
For more detailed information on railways, please see the Road_types/USA#Railroad but be aware that the guidelines written above take precedence.
Note: it is often necessary to split railways lines at county boundaries to avoid smudging the county name into the wrong area.
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