- An exit number is a number assigned to a road junction, as an exit from a freeway. It is usually marked on the same sign as the destinations of the exit.
ref=*
is used when the exit has a specific number assigned to it.
-
Use the Tasking manager link in the mapping ticket.
When we lock a motorway in Tasking manager, a link appears to take us directly to the road in Checkautopista2
Loading from Checkautopista2 to JOSM
These are the colour representations for the exits detected in Checkautopista2
- Browse along the route and check the ways on both directions at every Exit location for the following:
- There is a
motorway_junction
in the starting node of themotorway_link
exiting the highway red dot - The
motorway_junction
has a correct exit numberref
value as per the source. Nodes with missingref
tags represented by a blue dot - The exit number on both directions are the same.
- There is only one exit in a direction for every exit number.
Add missing exit numbers
-
Download the data and mapillary layer to locate a signboard around the blue marker in the imagery.
-
Use a combination of Mapillary, to add the
ref=*
tag onhighway=motorway_junction
(stick to using Mapillary as primary source and move to others in case of unavailablity of information)
Look out of highway sign boards in the satellite imagery. They may look something like this-
Places to look for-
-
It is not necessary that exit numbers are sequential. It might be 45 after 41.
-
There are some
motorway_junction
which don't have any associated exit number. Addnoref=yes
on these nodes. -
If there are multiple exits on the same signboard then you can tag them as
ref=* ; *
instead ofref:left=*
andref:right=*
until you are confirmed with that. -
Ignore the
highway=motorway_junction
where the traffic flow is towards the motorway
destination
- placename that the way exiting from the freeway leads to.destination:ref
- reference of the roads directly ahead.destination:street
- streetname the way exiting from the freeway leads to.
- Look out for red outer circle in Checkautopista for missing destination. Use
Open in JOSM
button to open the node in JOSM. Orange outer circle representsexit_to
tag and we don't need to add destination tags in the way. Green outer circle represent that the concern way already has destination tag.
-
Download the data around the
motorway_junction
and mapillary layer to locate a signboard. -
Use combination Mapillary images and Exit explorer to add destination as
destination=*
onmotorway_link
ways and the destination highway asdestination:ref=*
.
- Use
;
to separate multiple destination and refs. - Read more on Highway intesection to understand them better.