3.3.4. Road conditions

The rules for a certain intersection (for example, a roundabout) may follow clear and standard rules, and additional information about this type of intersection is not required.

But intersections often have road signs, traffic lights, or markings that define the specific rules for driving this intersection (for example, prohibited turns in a certain direction or allowing a u-turn). Information about these rules should be added in order to build routes correctly.

To map this information, the intersection can be associated with a special “Road sign” item.

Attention.

Adding turns exclusively for cargo trucks is temporarily disabled.

There are three types of “Road signs” in Yandex Map Editor:

1) Restricted maneuver

Used for signs like “No right turn”, “No left turn”, and so on. For examples, see Section 3.3.4.3. Road signs: examples

Conditions of this type are also displayed:

For obstacles that separate road sections from the road network. Those include checkpoints, gates, barriers, concrete blocks, “No entry” signs, and so forth. For more information, see Section 3.3.1.7. Rules for drawing road barriers).
No entry when there are exceptions for certain types of vehicles (see section 3.1.7.4.1;
Entrances that are not in use or permanently closed.
For restrictions on a maneuver for a transport type specified in traffic regulations (such as a restriction on left turns for bicycles on multi-lane roads).
Restrictions on longer intersections when there is a shorter way using an exit or main road. For example:

Note. Roundabouts and u-turns are marked as maneuvers if they are restricted by signs or markings. For example:
Technical restrictions on short intersections not allowed by traffic regulations:

Note. Map restrictions using the minimum number of road lanes.
U-turn restrictions at intersection (only applied by employees in rare cases where the route is plotted with two U-turns in a row at an intersection of two-lane roads):
Restrictions or obstacles that only prevent pedestrians and/or cyclists from entering a territory (such as entry exclusively for cars through a checkpoint), when there is an alternative entrance and exit from the territory.

2) Legal U-turn

Legal U-turns are set:

On one-lane roads of class 1-7 at locations where the solid lane breaks.
At intersections of one-lane roads of class 1-7 (except for situations where there is a sign restricting u-turns) with roads of class 1-9.
On class 1-9 roads if public transport makes a u-turn at that location (in this case, the value of the “Available for” field is set only to “Public transport”).

For examples, see Section 3.3.4.3. Road signs: examples.

3) Restricted entry

Used to display:

— Gates (including those on paid parking lots and at the entrance to the public area of an airport).

Note. Use the Applies to field to specify the types of vehicles that the restriction applies to, excluding public transport. For example, if bikers can't pass through the area with the restriction without dismounting, then this field should include bicycles.
— Security checkpoints (restricting entry to transports, pedestrians, or both).
— Entrances to areas via the only available road blocked with a “No entry” sign while being open to locals and staff working for organizations located beyond the sign. In this case, the restriction is set at the nearest intersection before the sign.
Situations when access to a public road (applies to class 6-7 roads that have no “Residential area” attribute because of other signs) is restricted with a “No traffic” or a “No motor transport” sign in one lane, but the other lane is open. In this case, the restriction is set at the nearest intersection before the sign.

Entry restrictions are not set for the following items:

Barriers at railroad crossings (see Section 3.8.6. Railway crossings)
Boom gates at toll collection points on toll roads and ferry and ice crossings.
Boom gates located on road sections only accessible by public transport (or only accessible by public transport as well as pedestrians and cyclists)
Never-closing gates and barriers
Checkpoints at national borders.
“No entry” signs with a label that the sign doesn't apply to residents or employees in the restricted area or other related exceptions, and “No traffic” signs at the entry to class 8 roads.
Boom gates at exits from restricted areas, regardless of the number of physical exits.

“Road signs” items include the following components:

The Intersection or crossing where the road sign is in effect.
Road sign types: “Prohibited maneuver”, “Legal U-turn”, “Restricted entry”, and “Railway crossing”.
The section or sections of road where the road sign is in effect.
The “Legal U-turn” and “Railway crossing”signs apply to a single road section.
The “Restricted entry” and “Restricted maneuver” signs apply to two or more sections of road (before and after the intersection where the road sign takes effect).

You can only set a road sign after you have finished mapping the road sections that they apply to.

Each intersection should only display the road signs that are applicable.

Note.

Besides road signs, intersections can also feature speed cameras (see Section 3.8.3. Speed cameras) and traffic lights (see Section 3.8.4. Traffic lights).

Described below:

Section 3.3.4.3. Road signs: examples provides examples of road conditions: For more examples, see Section 3.3.1.7. Rules for drawing road barriers.

3.3.4.1. Adding road signs

There are multiple ways to add a road sign:

You can use the Create → Road infrastructure command, select the appropriate road sign in the panel that opens, and then select the intersection that it relates to on the map.
You can select the appropriate intersection on the map and then connect it to a new road sign.

Further actions are performed the same way. To enter a road sign:

Determine where the appropriate intersection is (for example, by finding a road sign).
If there is no appropriate intersection, create one.
For example, on the picture prescriptive signs before the intersection show the required directions of movement and prohibit left turn:
That spot looks like this on Yandex Maps (the green arrow shows the traffic direction):
Click to highlight an intersection on the map (the attribution panel opens Crossroads):
In the Road intersection attribute panel that opens, click Add near Road signs or Railway crossing. That will open the Road sign panel:
As the Road sign panel opens, select a value for your maneuver type from the list:
Click to indicate the first element of the maneuver (the section of road where the road sign located before the intersection where it takes effect):
A red arrow will mark the beginning maneuver element that you entered earlier.
If you entered the “Legal u-turn” maneuver during the last step, then only enter one (beginning) maneuver element.
When created on the map, it is marked with this icon:
The Redraw button will be added to the toolbar.
Note.
When you click on it, the data you entered will be deleted and you can add the road sign again.
Click to indicate the final element(s) of the maneuver (the section(s) of road that the road sign applies to after the intersection where it takes effect):
The specified (final) maneuver element is also marked with a red arrow:
If you click on the road section again, it will be excluded from the maneuver.

Note. When creating a maneuver, you have to include the minimum number of edges so that the restricted area is well-defined.
When creating a prohibited or restrictive maneuver on an intersection with two edges, select the point that's considered an entrance to an intersection for the direction you've chosen:

Correct Incorrect

Correct Incorrect
Use the Applies to field to specify what type of vehicle a maneuver applies to.
Click the appropriate button to enter this attribute (click once to indicate that a given section of road is accessible to pedestrians, bicyclists, public transport, trucks, or light vehicles, and click again to indicate that it is inaccessible to that group).
Note.
For the "Legal U-turn" and "Restricted entry" road signs, the public transport attribute in the "Applies to" field must be disabled (inactive).

Only employees and users who have permission to work with the "Transport" layer or edit public transport routes can change the public transport attribute in the "Applies to" field (when absolutely necessary).

You don't need to edit public transport accessibility for existing maneuvers.

A pictograph shows whether the attribute is enabled or not. The button becomes semitransparent when the attribute is disabled:
→
Note.
Enable accessibility to bicycles in the road sign attributes to create a maneuver on a Class 10 road, even if accessibility to bicycles is disabled on the road sections used in the maneuver.

If a maneuver applies to network sections inaccessible to pedestrians, enabling the attribute that determines whether a maneuver is available for pedestrians is redundant, but not erroneous.
Make sure to specify time limits if they apply to your traffic conditions (i.e. those traffic conditions are only valid during specific times).
Attention. Don't set time limits for public transport.
Time limits are only specified for traffic conditions like:
- “Restricted maneuver” on roads with vehicle traffic.
- “Restricted entry” for pedestrians and all non-public transport types.
Time limits can be specified for any vehicle type they apply to. Create them in the following cases:
- Time limits are specified on traffic signs. For example:
- Entry to transport or pedestrians is restricted based on the area's operating hours.
If the exact closing time is unknown, the restrictions are set for the interval between 10 PM and 6 AM.
Do not use time limits in following cases:
- Restricted traffic is not based on a strict schedule and the time might change (e.g. lift bridges).
- Traffic on seasonal roads on weather conditions (e.g. ferry crossings and ice roads).
In such cases, please notify staff responsible for the region.
How to specify time limits:
1. In the attribute panel that opens, click Road sign and then click Add time limit:
2. Enter the values for the restrictions in the fields that open:
  
  Time: The times when the action represented by the road sign starts and ends.
  
  Enter time using the <HH:MM> format. For example, enter 8:00 a.m. as 08:00, and 8:30 p.m. as 23:30.
  
  If the values of the fields are not entered, the condition always applies.
  
  During period: the date when the action represented by the road sign starts and ends.
  
  Enter dates using the <DD:MM> format. For example, write April 1 as 01.04, and November 23 — as 23.11.
  
  If the values of the fields are not entered, the condition always applies.
  
  Weekdays, days of the week, and weekends — check the appropriate boxes.
  
  All boxes are checked by default. If the condition does not apply to all days of the week, then the desired options should be removed. For example, if a road sign only applies on weekdays, then uncheck the “Weekends” boxes.
  
  If a road sign involves a few different time frames (that differ, for example, for weekdays and weekends or for different calendar periods), then click twice on Add time limit to open a second field where you can enter time restrictions along with the appropriate values.
  To delete an extra time restriction entry field, just click (Delete).
  
  Note.
  A time restriction will apply to all vehicle types that you marked. You need to create an individual traffic condition for every kind of vehicle if you wish for every type of vehicle to have its own time restrictions (e.g. daytime for buses and nighttime for trucks).
  
  Time limits are set for the time intervals they apply to. The road sign is invalid the rest of the time.
In the attribute panel, click .
The Road sign panel will close and the Road intersection panel will open. In the Road sign section of the latter, you'll see a restricted maneuver link. If multiple maneuvers are associated with the same intersection, each of them will have its own link associated with it:
The Road sign panel will open when you click on the link.
The item will be saved on the map and the intersection, if there is one, will turn green:

3.3.4.2. Road signs: editing, undoing edits, and sending reports to the moderator

To edit a road sign:

Click to select the intersection on the map: In the panel that opens, click the appropriate link in Road signs:
This opens the Road sign panel.
To edit the road sign, go to the Road sign panel that opens and do the following:
1. Click Edit.
2. Select from the list to set the desired maneuver type:
3. Click to change the beginning or ending maneuver elements (if necessary).
  If you click on the road section again, it will be excluded from the maneuver.
4. In the Applies to field, change the list of vehicles the maneuver applies to (for the "Legal U-turn" and "Restricted entry" road signs, only employees and users who have permission to work with the "Transport" layer or edit public transport routes can enable and disable the public transport attribute in this field).
5. Set the time when these restrictions apply.
6. In the attribute panel, click .
  The item will be saved on the map and the intersection, if there is one, will turn green:
You can use the Undo edits button to return an item to the condition it was in before you started editing it (all the way back to the condition it was in when it was last approved by a moderator). If the item was created recently and still hasn't been approved by the moderator, then undoing edits will result in the item being deleted.
Only moderators have access to the Delete operation that lets them delete an item. YME users can delete items they created in error by undoing their own edits until the item disappears (if the item was just created and it was not approved by a moderator yet). If an item that was created earlier and already approved by a moderator needs to be deleted, you should report it to the moderator.
The procedure for undoing edits is described in Section 2.10.6. Item: Undoing edits, error messages, deleting items, links to items.
If an item was already approved by the moderator, then undoing edits will return the item to the condition it was in when it was approved. In this case users cannot delete an item by themselves and will need to report the item to the moderator for it to be deleted. You can send error reports to the moderator regarding a number of issues, not just when you need to remove an item.
The procedure for sending reports is described in Section 2.10.6. Item: Undoing edits, error messages, deleting items, links to items.

3.3.4.3. Road signs: examples

Traffic conditions must be set at intersections where additional information about road signs, traffic lights, or markings that define the specific driving rules for that intersection is needed to automatically set the route.

This section provides examples of road conditions:

Example 1. Right turn at intersection forbidden

Before the intersection, prescriptive signs are set that show the required directions of movement and at the same time prohibit right turns:

This situation is mapped by specifying the traffic (prohibition of right turn at the intersection):

Note. This example shows one of several traffic signs at a complicated intersection.

Example 2. Left turn at intersection forbidden

Before the intersection, prescriptive signs are set that show the required directions of movement and at the same time prohibit left turn:

This situation is mapped by specifying the traffic (prohibition of left turn at the intersection):

Example 3. U-turns forbidden

At this intersection, you can go straight or turn left, but you can not make a u-turn:

You can enter a traffic sign on the map to reflect this (see drawing): The maneuver includes two sections of the road after the intersection that the ban applies to (indicated by green arrows) - so that the permitted left turn is not prohibited:

Example 4. U-turns forbidden (permitted traffic directions indicated)

Before the intersection there is a sign prohibiting left turns, as well as prescriptive signs that show the required directions of movement and at the same time prohibit u-turn:

You can enter a traffic sign on the map to reflect this (see drawing):

Example 5. Forbidden turns at road forks and intersections with exit ramps

Example 5.1. Road fork

Perekopskaya St. forms exit ramps as it approaches the intersection, which is why u-turns are prohibited:

You can enter a traffic sign on the map to reflect this, as shown in the drawing. Here, u-turns are forbidden when the road splits to form exit lanes:

Note.

If this type of ban isn't set, when there is a traffic jam on the main road, the automatic router can set a route that includes prohibited driving.

Example 5.2

Three two-lane roads intersect at a fork in the lane:

This is mapped using the following road signs (red arrows mark the area where turns/u-turns are forbidden at intersections of central roads):

Example 5.3. Intersection of road with exit ramps

Intersection of road with exit ramps:

This is mapped using the following road signs (red arrows mark the area where turns are forbidden:

Example 5.4

Three one-lane roads intersect at a fork in the lane:

This is mapped using the following road signs (red arrows mark the area where turns are forbidden:

Example 6. Legal u-turn at break in solid line

A permitted u-turn at the point where the solid markup is broken is set by the corresponding condition of movement.:

Example 7. Legal u-turn (not prohibited)

At the intersection of a road drawn using one lane that has no signs forbidding u-turns, you should enter four “legal u-turn” road signs:

It is allowed to turn at all intersections where a u-turn is not prohibited and which do not specify the direction of movement on the lanes where u-turns are prohibited.

U-turns at intersections involving one-way streets may also be forbidden.

U-turns at the intersection of a one-lane and a two-lane road, provided they are not restricted by the traffic rules, should be drawn “inside” the intersection as shown in the picture below (the white arrow indicates an incorrect placement for a permitted U-turn):

Example 8. Left turn forbidden for bicyclists in accordance with traffic laws

Bicyclists are forbidden from turning left and making u-turns on roads with tram lines in the middle of the road, and on roads that have more than one lane for traffic going in that direction.

That's why you must add a no left turn warning for bicyclists at intersections with a road containing a tram line.

Example 9. U-turn forbidden at intersection

Applies in rare cases where the route is plotted with two u-turns in a row at an intersection of two-lane roads:

In those cases, you can add a complex ban on u-turns along with an example of an incorrect route in the comments under the map item:

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