• "When to use" section moved to the 2nd section, rather than the last
• For whatever reason, in the "When to use" section, there was a wall of text that more or less duplicated the points
• Updated/added to the suggested use case list
• Grouped the points together into categories of scenarios, each linked to the corresponding section of the article that discusses the details
• Moved 'edits not allowed' portion in to the existing "Editing" section

A junction box is a versatile tool that can help improve the accuracy of the map data. However, if problems are easily solved with other features such as turn restrictions, then a junction box should not be used.

Appropriate times to use a junction box:

1. To allow or disallow paths across multiple junction nodes:

• Where there can be two entrances to same exit path, but a route is prohibited. A simple turn restriction cannot adequately set the correct restrictions.
• In an H-intersection, when u-turns are allowed in one direction, but prohibited in the opposite direction. Previously, u-turn penalties & micro doglegs were used to break the u-turn prevention in one direction. There's no need to eliminate these, but a junction box would be appropriate for these intersections going forward.
• When the cross segment is less than 45.93 ft (14 m) due to the geometry of the intersection, and u-turn prevention needs to be overwritten to allow u-turns.

2. To set a turn instruction override in these situations:

• For a particular route, when only a single turn instruction is desired at the first junction node, and no additional instructions at subsequent junctions.
• When an early turn instruction is desired, without drawing an additional segment.

3. To better collect traffic data when there is a speed differential between traffic lanes through multiple junction nodes, such as:

• At-grade connectors (AGC) and parking lot roads cutting an intersection area into multiple segments and nodes
• Auxiliary lanes: entry ramps that extend to the next exit ramp: drivers that are merging on/off the freeway will have a different set of speeds than those that were already on the freeway and continuing on it
• Regular, long backups: backups that extend past turn pockets and exit ramps into lanes for through-traffic lanes