Waze Map Editor - Brief presentation on Roundabouts in Waze. Level 2 Mentor Point.

1. Roundabouts 2.0
Roundabouts
What is a Roundabout?
1
A roundabout is a type of circular
intersection with yield control of
entering traffic, islands on the
approaches, and appropriate roadway
curvature to reduce vehicle speeds.

2. Roundabouts 2.0
What is a
Roundabout?
2
Modern roundabouts are different
from rotaries and other traffic
circles. For example, roundabouts
are typically smaller than the
large, high-speed rotaries still in
use in some parts of the country.
In addition, roundabouts are
typically larger than neighborhood
traffic circles used to calm traffic.
A roundabout has these characteristics:

3. Roundabouts 2.0
What is a Roundabout (in Waze)?
3
Roundabouts, rotaries, or traffic circles, are unique segments of
roadway in the Waze router. When a driver approaches a
roundabout, a specific icon is displayed in the turn direction area
of the display with a number corresponding to the exit count from
the driver's entry into the roundabout. Manually creating a circular
road will not tell Waze to navigate the area as a roundabout.

4. Roundabouts 2.0
Types of Roundabouts
4
Abnormal Roundabout, Bourne, MA
Normal Roundabout, Sedona, AZ

5. Roundabouts 2.0
Types of Roundabouts
5
In Waze, there are two types
of roundabout. Normal,
and Abnormal.
A roundabout has a minimum of 3 road segments, but can
have 5 or more. Sounds pretty simple, right?
The basic concept of the roundabout in Waze relatively
simple to understand for newer editors.

6. Roundabouts 2.0
What About These?
6
One entrance - One exit
This is a traffic calming device
Not a roundabout.

7. Roundabouts 2.0
What About These?
7
Streets intersect, but there is no center island preventing
cross-traffic turns (left-hand in the US and right-hand in the
UK). There are no signs indicating a roundabout approaching
the intersection or painted on the ground.
A single road segment leading to a cul-de-sac
should be drawn as a dead end. With very large
roads it might be advisable to create a loop, but not
a roundabout.

8. Roundabouts 2.0
Road Types
8
To minimize inefficient routing, it is important to be
careful with the road type assigned to the Roundabout
itself. Any routing penalty going from connected roads
to the roundabout must be kept to a minimum, but it
should not be too "attractive," where routing through it
is encouraged when unnecessary.
It is possible to have multiple types
of roads meeting at a roundabout.

9. Roundabouts 2.0
Routing through...
9
A non-normal roundabout:
*Will give you a ‘take the X exit’ (with arrows around it) instruction.
*Has 5 or more nodes (Ex. Each segment of a split road connects at its
own node.)
*Has irregularly placed nodes (this is covered in the wiki.)
"...take the 5th exit..."
The Non-Normal Roundabout

10. Roundabouts 2.0
Routing through...
10
A normal roundabout:
*Will give you a ‘turn right', 'turn left’ or ‘continue straight’ instruction.
*Has up to 4 nodes, and a central node.
*All nodes are aligned within "normal" range of the entry point.
However, a roundabout can be both normal and non-normal at the same
time depending on your entrance node.
"...turn left on..."
The Normal Roundabout

11. Roundabouts 2.0 11
When you create a Roundabout on the
map, EVERY road segment inside the
roundabout will be deleted!
Where'd my city go?
What Could Go Wrong?

12. Roundabouts 2.0
In Conclusion...
12
The Roundabout is a
vital part of the map.
Please reference your
wiki link for detailed
information.
https://wiki.waze.com/wiki/Roundabouts/USA