3.3.4. Road signs

The rules for a specific intersection (for example, a roundabout) can be clearly defined. Additional information about this type of intersection is not required.

But more often at intersections there are 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 is required in order to set the correct routes.

To map this information, the intersection can be associated with a special Map object — “The condition of the road”.

There are three types of “Road signs” on YME:

  1. The Illegal maneuver caption is used for signs such as “Illegal right turn”, “Illegal left turn”, and others. For more examples, see section 3.3.4.3. Road signs: examples

    Conditions of this type are also displayed:

    • for obstacles, i.e. objects that separate road sections from the larger road network. Those include checkpoints, gates, barriers, concrete blocks, “No entry” signs, and others. For more info, 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 intended for use in emergency or emergency situations;

    • the entrances designed for the use of special equipment, delivery services, mail for the transport of goods in trade organizations;

    • entries that are not used currently and permanently closed.

  2. Mark a legal u-turn on one-line roads at the locations where the solid line breaks, as well as at the intersections of one-line roads (with the exception of situations where there is a sign forbidding u-turns).

    For examples, see section 3.3.4.3. Road signs: examples

  3. Restricted entry caption is used for displaying items which limit traffic but don't prohibit all movement outright, such as:
    • — Gates (including those on paid parking lots and at the entrance to the public area of an airport).

    • — Security checkpoints (restricting entry to transports, pedestrians, or both).

    • — Some traffic signs, such as “No traffic”, “No motor transport”, and “Residential area” (when they are applied to Class 1-to-7 roads), since they allow one to reach their home or workplace but restrict general traffic, etc.

    Entry restrictions are not set for the following items:

    • Railway crossing barrier

    • The gates at the toll of toll roads

    • Never-closing gates and barriers
    • Checkpoints at national borders

    See also section 3.3.1.7. Rules for drawing road barriers );

“Road signs” items include the following components:

  1. The Intersection (crossing) where the road sign is in effect.
  2. Type of road sign: “ restricted maneuver” , “ legal u-turn” , or “ Restricted entry” .
  3. The sections of road where the road sign is in effect.

    For the conditions “Allowed u-turn” this is one stretch of road.

    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, you can also mark speed cameras at the intersections of road sections (for more information, see section 3.8.3. Speed cameras) and traffic lights (for more information see 3.8.4. Traffic lights).

Described below:

See section 3.3.4.3. Traffic conditions: examples examples when specifying traffic conditions. For more examples, also see section 3.3.1.7. Rules for drawing road obstacles.

3.3.4.1. Adding road signs

There are two 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:

  1. Determine where the appropriate intersection is by searching for the appropriate road sign.

    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):

  2. Click to highlight an intersection on the map (the attribution panel opens Crossroads):

  3. In the attribution panel that opens Crossroads, in the range Condition of movement, hit Add (the panel opens Condition of movement):

  4. In the panel that opens Condition of movement select from the list to set the maneuver type:

  5. 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 a different icon:

    Note.

    The Redraw button will be added to the toolbar.

    When you click on it, the data you entered will be deleted and you can add the road sign again.

  6. 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.

  7. 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. If at least one public transport route passes through a restricted territory in the direction of restricted access, do not use the “Public transport” value.

    A pictograph shows whether the attribute is enabled or not. The button becomes semitransparent when the attribute is disabled:

  8. Make sure to specify time limits if they apply to your traffic conditions (i.e. those traffic conditions are only valid during specific times).

    Time limits are only specified for the “Illegal maneuver” condition, and only on roads with car traffic.

    Do not apply time-restricted maneuvers to pedestrian and cycling paths.

    “Restricted entry” conditions don't need time limits.

    Time limits should be used in the following cases:

    • Time limits are specified on traffic signs. For example:

    • The traffic is restricted for a road section based on an area's operating hours.

    Do not use time limits in following cases:

    • Time restrictions are based on an irregular schedule which can be changed over time (e.g. bridge movement).

    • Traffic on seasonal roads, whose availability depends on weather conditions (e.g. ferry river 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 am as 08:00, and 8:30 pm — as 23:30.

        If the values of the fields are not entered, then the condition will always apply.

      • 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, then the condition will always apply.

      • 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 times 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).

  9. In the attribute panel, click .
  10. 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. УRoad signs: edit, undo, send report to moderator

To edit a road sign:

  1. Click to select the intersection on the map: In the attribution panel that opens, in the Condition of movement, click the appropriate link:

    A panel opens Condition of movement.

  2. To edit a road sign, go to the Road sign panel that opens and perform the following:
    1. Tap 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. Use the Applies to field to specify what type of vehicle a maneuver applies to.
    5. Change (if necessary) the time limits for the maneuver.
    6. In the attribute panel, click .

      The item will be saved on the map and the intersection, if there is one, will turn green:

  3. 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 must report it to the moderator.

    The process for undoing edits is described in section 2.10.6. Item: undo edit, report to moderator, delete item; get link to item.

  4. 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 sent reports to the moderator regarding a number of issues (not only to request that an item be deleted).

    The procedure for sending reports is described in section 2.10.6. Item: undo edit, report to moderator, delete item; get link to item.

3.3.4.3 Traffic conditions: 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-line roads intersect at a fork in the line:

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-line roads intersect at a fork in the line:

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

Example 6. Left turns forbidden when u-turns are allowed

At this intersection, you can make a u-turn, but you can not turn left (for commercial vehicles):



You can enter a traffic sign on the map to reflect this (see drawing): The attribute in the Applies to field places a turning restriction on freight transport. The maneuver includes two sections of the road after the intersection that the ban applies to (indicated by green arrows) so that the permitted u-turn is not prohibited:



Example 7. 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 8. Legal u-turn (not prohibited)

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

Note.

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.

Example 9. 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.