# OS MasterMap Highways Network Code Lists

A code list is a controlled set of allowable labels or codes represented as an alphanumeric attribute. The pages in this section show the code lists used within the three OS MasterMap Highways Network products. The table below lists all the code lists used in OS MasterMap Highways Network products and identifies which of the three products each code list is associated with.

<table data-full-width="false"><thead><tr><th width="298.79998779296875">Code List</th><th width="87.5999755859375" data-type="checkbox">RAMI</th><th width="80.79998779296875" data-type="checkbox">Roads</th><th width="83.199951171875" data-type="checkbox">Paths</th></tr></thead><tbody><tr><td><a href="os-mastermap-highways-network-code-lists/accesspointvalue">AccessPointValue</a></td><td>false</td><td>true</td><td>false</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/accessrestrictionvalue">AccessRestrictionValue</a></td><td>true</td><td>false</td><td>false</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/changevalue">ChangeValue</a></td><td>true</td><td>true</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/connectiontypevalue">ConnectionTypeValue</a></td><td>false</td><td>true</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/cyclefacilityvalue">CycleFacilityValue</a></td><td>false</td><td>true</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/dedicationvalue">DedicationValue</a></td><td>true</td><td>false</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/formofroadnodevalue">FormOfRoadNodeValue</a></td><td>false</td><td>true</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/formofwaterwaynodevalue">FormOfWaterwayNodeValue</a></td><td>false</td><td>true</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/formofwayvalue">FormOfWayValue</a></td><td>false</td><td>true</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/hazardtypevalue">HazardTypeValue</a></td><td>true</td><td>false</td><td>false</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/junctiontypevalue">JunctionTypeValue</a></td><td>false</td><td>true</td><td>false</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/linkdirectionvalue">LinkDirectionValue</a></td><td>true</td><td>true</td><td>false</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/loadtypevalue">LoadTypeValue</a></td><td>true</td><td>false</td><td>false</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/maintenancevalue">MaintenanceValue</a></td><td>true</td><td>false</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/matchstatusvalue">MatchStatusValue</a></td><td>false</td><td>true</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/nameddatevalue">NamedDateValue</a></td><td>true</td><td>false</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/nameddayvalue">NamedDayValue</a></td><td>true</td><td>false</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/namedperiodvalue">NamedPeriodValue</a></td><td>true</td><td>false</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/namedtimevalue">NamedTimeValue</a></td><td>true</td><td>false</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/operationalstatevalue">OperationalStateValue</a></td><td>false</td><td>true</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/provenancesourcevalue">ProvenanceSourceValue</a></td><td>false</td><td>true</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/reinstatementtypevalue">ReinstatementTypeValue</a></td><td>true</td><td>false</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/restrictiontypevalue">RestrictionTypeValue</a></td><td>true</td><td>false</td><td>false</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/roadclassificationvalue">RoadClassificationValue</a></td><td>false</td><td>true</td><td>false</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/roadfunctionvalue">RoadFunctionValue</a></td><td>false</td><td>true</td><td>false</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/roadnodeclassificationvalue">RoadNodeClassificationValue</a></td><td>false</td><td>true</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/roadstructurevalue">RoadStructureValue</a></td><td>false</td><td>true</td><td>false</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/roadwidthconfidencelevelvalue">RoadWidthConfidenceLevelValue</a></td><td>false</td><td>true</td><td>false</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/specialdesignationtypevalue">SpecialDesignationTypeValue</a></td><td>true</td><td>false</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/streettypevalue">StreetTypeValue</a></td><td>false</td><td>true</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/structuretypevalue">StructureTypeValue</a></td><td>true</td><td>false</td><td>false</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/surfacetypevalue">SurfaceTypeValue</a></td><td>false</td><td>false</td><td>true</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/turnrestrictionvalue">TurnRestrictionValue</a></td><td>true</td><td>false</td><td>false</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/usetypevalue">UseTypeValue</a></td><td>true</td><td>false</td><td>false</td></tr><tr><td><a href="os-mastermap-highways-network-code-lists/vehicletypevalue">VehicleTypeValue</a></td><td>true</td><td>false</td><td>false</td></tr></tbody></table>