Roads fall into 4 classes
- A roads – major roads that link areas
- B roads – feed traffic between A roads and smaller roads on the network as well as connecting different areas
- C roads - unnumbered smaller roads that connect unclassified roads with A and B roads
- unclassified – local roads intended for local traffic
List of classified roads:
| Street Name or Section | Road class |
|---|---|
| Admirals Hard | C |
| Admiralty Street, Stonehouse | C |
| Albert Road | B |
| Albert Road Roundabout | B |
| Alexandra Road, Lipson | B |
| Alma Road | A |
| Arcadia Road | C |
| Babbacombe Close Roundabout | C |
| Bampton Road and Roundabouts | C |
| Barbican Approach | C |
| Barbican Road | C |
| Barnstaple Close | C |
| Barrack Place - Durnford Street to Caroline Place | C |
| Bartholomew Road | C |
| Beacon Park Road | C |
| Beacon Park Road slip roads from Wolseley Road | C |
| Beauchamp Road | C |
| Beaumont Road | C |
| Belle Vue Road | C |
| Belliver Roundabout | A |
| Biggin Hill | C |
| Billacombe Road | A |
| Blandford Road | C |
| Blunts Lane | C |
| Boringdon Hill | C |
| Boringdon Road, Plympton | C |
| Boringdon Road, Turnchapel | C |
| Bovisand Road | C |
| Brest Road | C |
| Brest Road Slip Road | C |
| Breton Side: Vauxhall Street to Buckwell Street | C |
| Breton Side: Vauxhall Street to Exeter Street | B |
| Bridwell Road | C |
| Buckwell Street | C |
| Budshead Road Dual Carriageway to / from Tavistock Road | A |
| Budshead Road: Budshead Way to Tamerton Foliot Road | B |
| Budshead Road: Tamerton Foliot Road to Crownhill Road | C |
| Budshead Way | A |
| Budshead Way Roundabout | A |
| Burrow Hill | C |
| Butt Park Road | C |
| Carlton Terrace, Lipson | C |
| Carlton Terrace, Weston Mill | C |
| Caroline Place | B |
| Cattedown Eastern Approach Road | C |
| Cattedown Road | C |
| Cattedown Road Roundabout | A |
| Cattewater Road | C |
| Central Park Avenue | C |
| Central Park Avenue slip road to / from Pennycomequick Road | C |
| Chapel Street and roundabout | A |
| Charles Cross roundabout | A |
| Charles Street dual carriageway | A |
| Cherry Tree Lane | C |
| Chestnut Road | C |
| Church Hill | C |
| Church Hill Road | C |
| Church Road, Plymstock | C |
| Church Row Lane | C |
| Citadel Road | C |
| Clarence Place, Stonehouse | C |
| Clittaford Road | C |
| Clovelly Road | C |
| Cobourg Street dual carriageway | A |
| Colebrook Road, St Budeaux | C |
| Colebrook Road, Plympton | C |
| Colesdown Hill | C |
| Commerical Road | C |
| Compton Park Road | C |
| Cornwood Road | C |
| Cot Hill | C |
| Cremyll Street | B |
| Cremyll Street | C |
| Crownhill Road | B |
| Crownhill Road dual carriageway and roundabouts | B |
| Crownhill Road slip road to Budshead Way | A |
| Crownhill Road slip road to Meavy Way | B |
| Culver Way | C |
| Cumberland Road and roundabout | A |
| Dark Street Lane | C |
| Dark Street Lane access to Mudge Way | C |
| Dean Cross Road | C |
| Dean Hill | C |
| Deep Lane | B |
| Delamere Road | C |
| Derriford Road | C |
| Derriford Road slip roads | C |
| Derriford Road roundabouts | C |
| Derrys Cross roundabout | C |
| Devonport Hill dual carriageway and roundabout | A |
| Devonport Road: Albert Road to Fore Street | C |
| Devonport Road: Molesworth Road to Albert Road | B |
| Doreena Road | C |
| Drake Circus dual carriageway | B |
| Dunken Bridge Hill | C |
| Dunnet Road | C |
| Durnford Street | C |
| Ebrington Street | C |
| Edgcumbe Street | A |
| Efford Lane | C |
| Efford Road | C |
| Egerton Road | C |
| Eggbuckland Road and roundabout | C |
| Elburton Road | A |
| Eldad Hill | C |
| Elliott Road | C |
| Embankment Road | A |
| Emma Place | C |
| Emma Place Ope | C |
| Ernesettle Lane | C |
| Exeter Street dual carriageway: Charles Cross to Cattedown Roundabout | A |
| Exeter Street dual carriageway: Charles Cross to St Andrews Cross | C |
| Faraday Road | C |
| Ferndale Road | C |
| Ferry Road | A |
| Fletemoor Road | C |
| Ford Hill | C |
| Ford Park Road | C |
| Forder Valley Road | B |
| Forder Valley Roundabout | B |
| Forder Valley Slip Roads | A |
| Fore Street, Devonport | C |
| Fore Street, Plympton | C |
| Fore Street, Tamerton Foliot | C |
| Fort Austin Avenue | B |
| Frogmore Avenue | C |
| Furzehatt Road | C |
| Gascoyne Place | C |
| Gasking Street | C |
| Gdynia Way | A |
| George Lane | C |
| Glen Road | B |
| Golden Square | C |
| Goosewell Road and roundabouts | C |
| Goosewell Road slip road to / from Staddiscombe Road | C |
| Grand Parade | C |
| Great Western Road | C |
| Greenbank Avenue | C |
| Greenbank Road | B |
| Ham Drive and Roundabouts | C |
| Haye Road | C |
| Heles Terrace | A |
| Henderson Place | C |
| High Street | C |
| Higher Compton Road and roundabout | C |
| Hillcrest Drive | C |
| Hoe Approach | C |
| Hoe Road | C |
| Hoe Road: Citadel Access | C |
| Holland Road, Peverell | C |
| Holland Road, Plymstock | C |
| Honicknowle Lane and roundabouts | C |
| Hooe Hill | C |
| Hooe Lane | C |
| Hooe Road | C |
| Horn Cross Road | C |
| Hyde Park Road | C |
| Hyde Park Road slip road from Mutley Plain | C |
| Hyde Park Road: A junction around Hyde Park Public House | B |
| Jennycliff Lane | C |
| Keyham Road | B |
| King Street and roundabout | C |
| Kings Road, Stoke | C |
| Kinterbury Street | C |
| Laira Bridge Road | A |
| Lakeside drive | C |
| Lambert Road | C |
| Lambhay Hill | C |
| Langstone Road | C |
| Langstone Terrace | C |
| Lanhydrock Road | C |
| Larkham Lane | C |
| Lawrence Road and roundabout | C |
| Linketty Lane | C |
| Linton Road | C |
| Lippell Drive | C |
| Lipson Road | C |
| Lipson Vale | B |
| Lockyer Street | C |
| Longbridge Road and roundabout | C |
| Longbrook Street | C |
| Longcause | C |
| Looseleigh Lane | C |
| Looseleigh Lane slip road to /from Derriford roundabout | C |
| Lower Compton Road | C |
| Lucas Lane | C |
| Macadam Road | C |
| Maderia Road | C |
| Manadon Over-Pass | A |
| Manadon Roundabout and slip roads | A |
| Mannamead Road | B |
| Manor Street | C |
| Market Road | C |
| Marsh Mills Roundabout | A |
| Martin Street and roundabout | C |
| Maxwell Road | C |
| Meavy Way | B |
| Meavy Way slip road to Crownhill Road | B |
| Meavy Way slip road to / from Tavistock Road | A |
| Melville Road | C |
| Merafield Road | C |
| Milehouse Junction and slip roads | A |
| Milehouse Road | B |
| Milford Lane | C |
| Mill Bridge | C |
| Millbay Road and Roundabout: The Crescent to West Hoe Road | B |
| Millbay Road and Roundabout: West Hoe Road to Caroline Place | C |
| Miller Way and roundabouts | C |
| Molesworth Road, Stoke | C |
| Molesworth Road, Plympton | C |
| Montpelier Road | C |
| Moorland Road and roundabout | C |
| Morgan Road and roundabout | B |
| Morshead Road | B |
| Morshead Road slip roads to / from Tavistock Road | A |
| Mount Gould Road | C |
| Mudge Way | C |
| Mutley Plain | B |
| New Park Road | C |
| Newnham Road and roundabout: Colebrook Road to B3417 turn off | B |
| Newnham Road: B3417 turn off to West Park Hill | C |
| Normandy Hill | C |
| Normandy Way | C |
| North Cross roundabout | A |
| North Hill | B |
| North Prospect Road and roundabouts | C |
| North Road East | C |
| North Road East slip road to / from North Cross Roundabout | C |
| North Road West | C |
| North Road West slip road to / from Saltash Road | C |
| Northolt Avenue | C |
| Northumberland Terrace | C |
| Notte Street | B |
| Novorossiysk Road and roundabouts | B |
| Oakfield Terrace Road | C |
| Octagon Street | C |
| Old Laira Road and the roundabout: From the roundabout to Plymouth Road | A |
| Old Laira Road slip road to Plymouth Road | B |
| Old Laira Road: From Lipson Vale to Old Laira Road roundabout | B |
| Oreston Road | C |
| Outland Road and slip roads | A |
| Outland Road slip road to Segrave Road | A |
| Paradise Road | C |
| Park Avenue, Devonport: Albert Road to Ferry Road | B |
| Park Avenue, Devonport: Ferry Road to Chapel Street | A |
| Park Lane, Plympton | B |
| Park Lane, Plymstock | B |
| Pemros Road | C |
| Pennycomequick Hill | A |
| Pennycomequick roundabout | A |
| Pennycross Park Road | C |
| Peters Park Lane and roundabouts | C |
| Peverell Park Road | C |
| Phoenix Street | C |
| Pike Road | C |
| Plumer Road | A |
| Plumer Road | B |
| Plumer Road slip road to Tavistock Road | A |
| Plumer Road slip roads | B |
| Plymbridge Lane | C |
| Plymbridge Road, Glenholt: Morgan Road to Novorossiysk Roundabout | B |
| Plymbridge Road, Plympton: Larkham Lane to Glen Road | C |
| Plymouth Road and roundabouts: Marsh Mills roundabout to Glen Road | A |
| Plymouth Road: Embankment Road to Marsh Mills Roundabout | A |
| Plympton Hill | C |
| Plymstock Road | C |
| Pomphlett Road and roundabout | C |
| Pottery Road | A |
| Pottery Road Control Tower entrance from loop | A |
| Pound Street | C |
| Radford Park Road | C |
| Radford Road | C |
| Regent Street | C |
| Reservoir Road, Hartley | C |
| Reservoir Road, Plymstock | C |
| Ridge Road and slip roads | C |
| Ridgeway and roundabouts | C |
| Ridgeway slip road to / from Cornwood Road | C |
| Rock Hill | C |
| Rollis Park Road | C |
| Roman Way | C |
| Royal Navy Avenue | C |
| Royal Parade dual carriageway | C |
| Royal William Road | C |
| Saltash Road dual carriageway | A |
| Saltash Road, Keyham | B |
| Saltash Road, Pennycomequick | B |
| Sandy Road and roundabout | B |
| Savery Terrace | C |
| Segrave Road | C |
| Seven Stars Lane | C |
| Shakespeare Road | C |
| Shapters Road | C |
| Shapters Road slip road from Gdynia Way | C |
| Shapters Way | C |
| Sherford Road | C |
| Southside Street | C |
| Southway Drive and roundabouts | C |
| Springfield Road | C |
| St Andrews Cross roundabout | C |
| St Budeaux by-pass | A |
| St Budeaux interchange | B |
| St Johns Road, Turnchapel | C |
| St Levan Road | C |
| St Maurice Road | C |
| St Peters Road | C |
| St Peters Road slip road to / from Shakespeare Road | C |
| Staddiscombe Road | C |
| Staddiscombe Road across slips roads to Goosewell Road | C |
| Staddon Lane | C |
| Stamford Fort Road | C |
| Stanborough Road | C |
| Station Road, Tamerton Foliot | C |
| Stentaway Road | C |
| Stoke Road and roundabout | C |
| Stonehouse Bridge dual carriageway and roundabouts | A |
| Strode Road and roundabout | B |
| Stuart Road and roundabout | C |
| Stuart Road slip road to / from Pennycomequick roundabout | C |
| Sutton Road | C |
| Tamerton Foliot Road: Budshead Road to Southway Drive | B |
| Tamerton Foliot Road: Southway Drive to Station Road | C |
| Tamerton Road | C |
| Tavistock Road | A |
| Tavistock Road slip road into Roborough Village | C |
| The Barbican | C |
| The Crescent | B |
| The Crescent: Western Approach junction | A |
| The Octagon roundabout | A |
| The Quay | C |
| Thornville Terrace | C |
| Torr Lane | C |
| Torridge Way | C |
| Tothill Avenue | B |
| Tothill Road | B |
| Trelawney Place | C |
| Trevithick Road | C |
| Underlane, Plympton | C |
| Underlane, Plymstock | C |
| Underlane slip road from Radford Park Road | C |
| Underwood Road | C |
| Union Street | A |
| Union Street dual carriageway slip road to The Crescent | C |
| Union Street dual carriageway: Western Approach to Derrys Cross | C |
| Uxbridge Drive | C |
| Valley Road | C |
| Vauxhall Street | B |
| Victoria Road and roundabout | C |
| Vinery Lane | C |
| Wembury Road | C |
| Wembury Road access lane (side of) to Blackstone Close | C |
| West Hoe Road | C |
| West Park Hill | C |
| Western Approach | A |
| Weston Mill Drive | A |
| Weston Mill Road and roundabouts | C |
| Weston Park Road | C |
| Whitsoncross Lane | C |
| Widey Lane | C |
| Wilton Road | C |
| Wilton Street | C |
| Woburn Terrace | C |
| Wolseley Road dual carriageway and roundabouts: Milehouse Junction to Weston Mill Drive | A |
| Wolseley Road North Docks entrance road | A |
| Wolseley Road: Victoria Road to Wolseley Road Rail Bridge | C |
| Wolseley Road: Weston Mill Drive to Normandy Hill | C |
| Wolverwood Lane | C |
| Woolwell Roundabout | A |
| Yeomans Way | C |