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Signalau, gweithdrefnau stopio, goleuadau rheoli'r cerbyd, terfynau cyflymder, pellteroedd stopio, llinellau a marciau lonydd a ffyrdd aml-lôn, ysmygu, ffonau symudol a llywio â lloeren.
Marciau ffyrdd a ddefnyddir, gan gynnwys y rhai ar draws y gerbydffordd, ar hyd y gerbydffordd, wrth ymyl y gerbydffordd, ar y cwrb neu ar ymyl y gerbydffordd a marciau ffyrdd eraill.
Mynegai o'r pynciau sy'n cael eu cynnwys yn Rheolau'r Ffordd Fawr.
Gwybodaeth a rheolau am gosbau, gan gynnwys pwyntiau ac anghymhwyso, tabl cosb, gyrwyr newydd a chanlyniadau eraill o droseddu.
Rheolau ar gyfer defnyddio'r ffordd, gan gynnwys rheolau cyffredinol, goddiweddyd, cyffyrdd, cylchfannau, croesfannau i gerddwyr a bacio.
Rheolau ar gyfer gwaith ffyrdd (gan gynnwys ffyrdd cyflymder uchel), croesfannau gwastad a thramffyrdd.
The [Department of the Environment](http://www.doeni.gov.uk) is responsible for the environment in Northern Ireland
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