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| Access road | Bóthar rochtana |
| Accommodation road | Bóthar áise |
| All-purpose road | Bóthar uilefhóntach |
| Allocation | Leithroinnt/Dáileadh |
| Amber | Ómrach |
| Approach road | Bóthar isteach |
| Approved road | Bóthar ceadaithe |
| Arterial road | Bóthar artaireach |
| Articulated | Altach |
| Beacon | Rabhcán |
| Black spot | Ball báis |
| Bollard | Mullard |
| Bracket | Brac |
| Bus lane | Buslána |
| Bypass | Seachbhóthar |
| Car park | Carrchlós |
| Caution - Children Crossing | Aire - Leanaí ag Trasnú |
| Circular road | Cuarbhóthar |
| Classification | Aicmiú/Rangú |
| Classified road | Bóthar aicmithe |
| Commercial traffic | Trácht tráchtála |
| Commuter traffic | Trácht comaitéireachta |
| Comprehensive | Cuimsitheach |
| Concealed entrance | Oscailt cheilte |
| Container traffic | Trácht coimeádán |
| Country road | Bóthar tuaithe |
| Criteria | Slata tomhais |
| Cross-town road | Bóthar trasbhaile |
| Cul de sac | Cul de sac |
| Cycleway | Rotharbhealach |
| Cyclical | Timthriallach |
| Damaged | Damáistithe |
| Defer (vb) | Cuireann siar |
| Demand crossing | Crosaire éilimh |
| Detailed | Mionsonraithe |
| Dimensions | Toisí |
| Diverted traffic | Trácht ar mhalairt slí |
| Drainage | Draenáil |
| Eliminate (vb) | Díothaíonn |
| Emergency | Éigeandáil/Práinn |
| Entrance | Bealach isteach |
| Excavation | Tochailt |
| Except buses and taxis | Ach amháin busanna agus tacsaithe |
| Except for access | Ach amháin rochtain |
| Exit | Bealach amach |
| Exit road | Bóthar amach |
| Facility | Fóntas |
| Feeder road | Bóthar friothálach |
| Flashing | Gealánach |
| Freight traffic | Trácht lastais |
| Funding | Maoiniú |
| Generated traffic | Trácht ginte |
| Grant | Deontas |
| Gully | Clasán/Lintéar |
| Hazard | Guais |
| High-speed road | Bóthar ardluais |
| Hill road | Bóthar cnoic |
| Holiday traffic | Trácht lucht saoire |
| Implication | Impleacht/Ciallachas |
| Industry | Tionscal |
| Inland traffic | Trácht intíre |
| Install | Cuireann Isteach/ |
| Suiteálann | |
| Intercity traffic | Trácht idirchathrach |
| Interurban road | Bóthar idiruirbeach |
| Junction | Acomhal |
| Lantern | Lóchrann |
| Layby | Leataobh |
| Level crossing | Crosaire comhréidh |
| Liaison | Idirchaidreamh |
| Lining | Líneáil |
| Link road | Bóthar ceangail |
| Local traffic | Trácht áitiúil |
| Local road | Bóthar áitiúil |
| Localised | Áitiúil/Logánta |
| Loose Chippings | Cloichíní scaoilte |
| Lorry | Leoraí |
| Low-speed road | Bóthar íseal-luais |
| Main road | Príomhbhóthar |
| Maintain | Cothabhálann |
| Maintenance | Cothabháil |
| Major road | Mórbhóthar |
| Map | Léarscáil |
| Medium-speed road | Bóthar meánluais |
| Minor road | Mionbhóthar |
| Motor traffic | Mótarthrácht |
| Motorway | Mótarbhealach |
| Mountain road | Bóthar sléibhe |
| Multistorey car park | Carrchlós ilstórach |
| Nameplate | Ainmchlár |
| National Roads Authority | An tÚdarás um Bóithre Náisiúnta |
| National secondary roads | Bóithre náisiúnta den dara grád |
| National primary roads | Príomhbhóithre náisiúnta |
| Obsolete | As feidhm |
| One-way road | Bóthar aontreo |
| One-way traffic | Trácht aontreo |
| Output | Táirgeacht |
| Palisade | Sonnach |
| Parking | Páirceáil/Locadh |
| Peak-hour traffic | Trácht buaicuaire |
| Pedestrian | Coisí |
| Pedestrian crossing | Trasrian coisithe |
| Pedestrain zone | Coisithe amháin |
| Pedestrianisation | Teorannú do choisithe |
| Planned maintenance | Cothabháil phleanáilte |
| Pole | Cuaille |
| Port | Port |
| Pothole | Linntreog |
| Primary roads | Príomhbhóithre |
| Priority roads | Bóithre tosaíochta |
| Priority traffic | Trácht tosaíochta |
| Programme | Clár |
| Progress | Dul chun cinn |
| Proportion | Comhréir |
| Proposal | Togra |
| Public utility | Fóntas poiblí |
| Public lighting | Soilsiú poiblí |
| Railing | Ráille |
| Ramp ahead | Rampa romhat |
| Regional road | Bóthar réigiúnach |
| Relief road | Bóthar faoisimh |
| Repair | Deisíonn |
| Repairs | Deisiúcháin |
| Review | Athbhreithniú |
| Rigid | Righin |
| Ring road | Bóthar cuarach |
| Road, roads | Bóthar, bóithre |
| Road closed | Bóthar dúnta |
| Road liable to flooding | Baol tuilte |
| Road traffic | Trácht ar bhóithre |
| Road markings | Marcanna bóthair |
| Roundabout | Compal/Timpeallán |
| Routine (adj) | Gnáth- |
| Rumble strips | Stiallacha tormáin |
| Safety | Sábháilteacht |
| Scenic road | Bóthar sciamhach |
| Scenic toll road | Bóthar dola sciamhach |
| School patrol ahead | Patról scoile romhat |
| Secondary road | Bóthar den dara grád |
| Service road | Bóthar freastail |
| Side road | Taobh-bhóthar |
| Signal controlled | |
| roundabout ahead | Compal soilse romhat |
| Signpost | Cuaille eolais |
| Single line traffic | Trácht aon líne |
| Slip road | Sliosbhóthar |
| Specified | Sonraithe |
| Speed | Luas |
| Speed (vb) | Tiomáineann ar róluas |
| Speed ramp | Rampa moillithe |
| Statistics | Staidreamh, staitisticí |
| Street refuge | Oileán sráide |
| Study | Staidéar |
| Suburban traffic | Trácht bruachbhaile |
| Surface | Dromchla |
| Tanker traffic | Trácht tancaer |
| Tarmacadam | Tarramhacadam |
| Temporary | Sealadach |
| Temporary road surface | Dromchla sealadach |
| Through road | Trébhóthar |
| Through traffic | Tréthrácht |
| Toll bridge | Droichead dola |
| Toll plaza | Plás dola |
| Toll road | Bóthar dola |
| Tourist traffic | Trácht turasóireachta |
| Traffic | Trácht |
| Traffic calming measures | Bearta moillithe tráchta |
| Traffic count | Áireamh tráchta |
| Traffic island | Tearmann tráchta |
| Traffic jam | Tranglam tráchta |
| Traffic management plan | Plean bainistíochta tráchta |
| Traffic signals | Comharthaí tráchta |
| Transit traffic | Trácht idirthurais |
| Transport | Iompar |
| Tree/Hedge cutting | Bearradh crann/fáil |
| Truck | Trucail |
| Trunk road | Mórbhóthar |
| Turning Circle | Caschiorcal |
| Turnpike | Bóthar dola |
| Two-way traffic | Trácht dhá threo |
| Unapproved road | Bóthar neamhcheadaithe |
| Unclassified road | Bóthar neamhaicmithe |
| Unfenced road | Bóthar gan fál |
| Unfenced minor road | Mionbhóthar gan fál |
| Unmetalled road | Bóthar neamh-mhiotalaithe |
| Upgrade | Feabhsaíonn |
| Volume (material) | Toirt |
| Volume (of traffic) | Líon feithiclí |
| Walkway | Siúlbhealach |
| Widen | Leathnaíonn |
| Widening | Leathnú |
| Winding road | Bóthar casta |
| Zebra crossing | Trasrian síogach |
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