Additional lane for slow-moving vehicles

Draft, not yet reviewed

In the moment

What to keep in mind

Use the extra lane as signed and merge only when it is safe.

Representative value/layout: Bulgaria road sign Д2a.svg. Other values or layouts exist for this code.

Source and review trail

Source: mrrb-sign-ordinance-docx
Retrieved: 2026-10-07T15:16:23.604Z
Location: Приложение № 5, table 6, row 2
SHA-256: 84eaea30d96784fc7830fedcabc9ecbf752217dd127321bdc890ddecbf692baf
Original: Open source document
Image licence: CC BY-SA 4.0
Image retrieved: 2026-10-07T17:51:46.790Z
Image SHA-256: 3fe2cd526f5562bc538e9752151322cca274959127171d5db805d867256f4b55
Image source: Open original artwork