1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefro
2、m, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.QUESTIONS REGARDING THIS DOCUMENT: (724) 772-8512 FAX: (724) 776-0243TO PLACE A DOCUMENT
3、 ORDER; (724) 776-4970 FAX: (724) 776-0790http:www.sae.orgCopyright 1995 Society of Automotive Engineers, Inc.All rights reserved. Printed in U.S.A.SURFACEVEHICLE400 Commonwealth Drive, Warrendale, PA 15096-0001STANDARDSubmitted for recognition as an American National StandardJ1663ISSUEDAUG95Issued
4、1995-08TRUTH-IN-LABELING STANDARD FOR NAVIGATION MAP DATABASESForewordThis Document has not changed other than to put it into the new SAE Technical Standards BoardFormat.This SAE Standard defines consistent terminology, metrics, and tests for describing the content and quality ofnavigable map databa
5、ses. This standard will allow users to determine whether a given map database meets theneeds for their application. (A truth-in-labeling standard does NOT specify the physical format of the database orminimum performance standards.)The focus of this document is to support the navigation applications
6、 that automotive manufacturers and suppliersare currently developing for marketplace delivery. While the focus is on in-vehicle navigation applications for motorvehicles, the document will be applicable to other ITS traveler applications using digital maps. The primaryaudience for this document is s
7、ystems developers of passenger vehicle navigation products.TABLE OF CONTENTS1. Scope . 22. References 22.1 Applicable Publications. 23. Definitions. 34. Commercial Disclosure Statement . 35. Structure of this Document. 35.1 Name and Definition. 35.2 Metrics 45.3 Testing Mechanism. 46. Coverage 46.1
8、Geopolitical Areas 47. Currentness 48. Applications 59. Nodes and Junctions 59.1 Definition 59.2 Types of Nodes and Junctions 510. Location and Existence of Attached Links 710.1 Link. 711. Road Names 711.1 Highway Names . 711.2 Highway Alias Name 7SAE J1663 Issued AUG95-2-11.3 Street Name711.4 Stree
9、t Alias Name.712. Address Range .712.1 Address Components . 712.2 Address Range Systems 812.3 ZIP Codes.813. Road Classifications .813.1 Types of Roadway Classifications. 814. Restricted Maneuvers. 914.1 Restricted Maneuver.914.2 Categories of Restricted Maneuvers 915. Metrics 915.1 General Metrics
10、for Variables and Attributes 915.2 Metrics for Nodes and Junctions.1015.3 Metrics for Attached Links.1115.4 Metrics for Limited Access Road Names1215.5 Metrics for Unaddressed Non-Limited Access Roads 1215.6 Metrics for AddressesGeneral.1215.7 Metrics for City-Type Addresses .1215.8 Metrics for Irre
11、gular (Vanity) Addresses1215.9 Metrics for Landmark Addresses 1215.10 Functional Road Classification Metrics.1215.11 Physical Road Classification Metrics 1415.12 Physical Characteristics Road Classification Metrics .1515.13 Special Routing Road Classification Metrics 1615.14 Metrics for Restricted M
12、aneuvers .1716. Testing Procedures .1716.1 Test MethodsGeneral 1716.2 Test for Network Completeness and Accuracy .1916.3 Test for Nodes and Junctions1916.4 Test for Attached Links1916.5 Test for Completeness and Accuracy of Road Name and Road Classification 1916.6 Test for Address Range 1916.7 Test
13、for Turn Restrictions 201. ScopeThis SAE Standard is a truth-in-labeling standard for map databases.2. References2.1 Applicable PublicationsThe following publications form a part of the specification to the extent specifiedherein.2.1.1 ANSI/ASQC PUBLICATIONAvailable from ANSI, 11 West 42nd Street, N
14、ew York, NY 10036-8002.ANSI/ASQC Z1.4 1981ANSI Standard for Quality Testing2.1.2 NORTH AMERICAN DATUM PUBLICATIONSAvailable from U.S. Geological Survey, Box 25046, Building 810,Denver Federal Center, MS 504, Denver, CO 08225-0046.North American Datum 1927National Geodetic SurveyNorth American Datum
15、1983National Geodetic SurveySAE J1663 Issued AUG95-3-2.1.3 WORLD GEODETIC SYSTEM DOCUMENTAvailable from U.S. Geological Survey, Box 25046, Building 810,Denver Federal Center, MS 504, Denver, CO 08225-0046.World Geodetic System 1984An internationally standardized coordinate system3. Definitions3.1 Mo
16、tor VehicleIn this version of the document, the term motor vehicle is restricted to include only privatelyowned vehicles designed primarily for use on U.S. roads. It includes cars, light trucks, vans, and sport utilityvehicles that are not towing anything that would restrict the use of the vehicle.3
17、.2 Digital Map DatabaseA two-dimensional complex in which geographic and roadway network features areprojected onto an ellipsoid. For this document, the database supplier must state the coordinate system used.The supplier must state the original coordinate system used when taking measurements and th
18、e method oftranslating from the original coordinate system to the coordinate system used. For example: “Nodes weremeasured in NAD 27 and converted to NAD 83 by algorithm A.“ The algorithm must be provided.4. Commercial Disclosure StatementAll databases offered under this standard will contain the fo
19、llowingCommercial Disclosure Statement:“This map database is intended to support in-vehicle navigation applications. The information contained in thedatabase is not intended to replace or supersede human judgment or reason, and should be considered onlyas an informational aid in decision making.This
20、 map database is accompanied by a vendor-supplied statement of accuracy, completeness, andcurrentness of key components of the database in conformance with SAE J1663. This vendor statement wasvalidated and certified by a testing institute of the Society of Automotive Engineers (SAE).This certificati
21、on does not guarantee that the map database is accurate in all respects, but simply that thevendors claims for database accuracy, completeness, and currentness are accurate at a _ %1 confidencelevel as of the date specified under currentness. The user should be aware that changes may have occurred t
22、othe street and roadway system, or to other real-world entities covered in the map database, since the mapdatabase certification was performed.“5. Structure of this DocumentThe document consists of definitions and detailed descriptions of the mapdatabase attributes to be included by the vendor in it
23、s statement, followed by metrics and tests for each kind ofobject or characteristic.Digital map databases contain information on nodes, links, regions, and points of interest (collectively:“objects“). For each such object and characteristic, the document will include:a. Name and Definitionb. Metrics
24、c. Test5.1 Name and DefinitionDefinitions attempt to precisely and unambiguously describe the entity in question. Tothe extent possible, the names were chosen to evoke the industrys (and the publics) intuitive understanding ofthe concept.1. This percentage will be established by the Testing Institut
25、e.SAE J1663 Issued AUG95-4-5.2 MetricsA metric is a scale against which an object or characteristic is evaluated. Multiple metrics may applyto an object or characteristic, since:a. Different applications may require different metricsb. A particular application may require more than one metric (e.g.,
26、 quality of an individual instance pluspercentage of instances in a database which are of this quality)For each object or characteristic, one or more base metrics are defined.5.3 Testing MechanismA testing mechanism is used to score an object or characteristic against an applicablemetric. Tests are
27、designed to be:a. Feasible (practical with respect to procedure and cost)b. Replicablec. Independent of the data sources used to build a database, whenever feasible6. CoverageCoverage will be specified for each attribute. Vendors shall state coverage for a particular mapdatabase in the U.S. as a col
28、lection of county/state pairs, and in Canada as a collection of census division/province pairs. If some additional portion of a county is included in the coverage, the criteria for such inclusionand the geographic description of the included part shall be stated clearly.6.1 Geopolitical Areas6.1.1 S
29、TATESStates are the major political divisions of the United States. Additionally, there are “stateequivalents“ such as the District of Columbia and the outlying possessions of Guam and American Samoa,the Commonwealth of Puerto Rico, and the Territory of the U.S. Virgin Islands. Provinces are the maj
30、orpolitical divisions of Canada.6.1.2 COUNTIESCounties are the basic political divisions of the states. Their boundaries are defined by theirrespective state governments. All states have counties with the exception of Alaska where the CensusBureau created county equivalents called “Census Areas“ and
31、 “Boroughs.“ In Louisiana, counties are called“parishes.“ There are county equivalents called “Independent Cities“ which are cities politically independentof any county. Baltimore, MD; St. Louis, MO; and Carson City, NV are independent cities as are 41 cities inVirginia.In Canada, Census Division is
32、 the generic term for the basic political divisions of the provinces except forNewfoundland, Manitoba, Saskatchewan, and Alberta, where it applies to equivalent statistical areas createdby Statistics Canada. Where the Census Divisions are political entities, their names vary from province toprovince
33、. They are called counties in Prince Edward Island, Nova Scotia, and parts of Ontario. In the rest ofthe provinces they may be called regional districts, regional municipalities, and at least 5 other names. Thelack of consistency for this type of area may make it difficult, if not impossible to sele
34、ct Census Divisions as ameasurement area for many parts of Canada.7. CurrentnessCurrentness of any database attribute shall refer to the most recent date on which the databasesupplier has determined the attribute is accurate to a specified level.Any database will have a number of currentness dates i
35、n month/year format corresponding to variousattributes.The suppliers Statement of Currentness shall have a format similar to the example in Figure 1: SAE J1663 Issued AUG95-5-FIGURE 1EXAMPLE OF SUPPLIERS STATEMENT OF CURRENTNESS FORMAT8. ApplicationsThis document focuses on attributes needed for mot
36、or vehicle navigation applications:a. Address LocationTranslating a user-oriented place specification (e.g., street address, intersection,vanity address, named place) to a specific object such as a node or link in the databaseb. Route DeterminationCalculating a legal driving route between two specif
37、ied placesc. Route GuidanceDelivering real-time driving directions to the driver, based on a determined routeand vehicle position/speedd. Vehicle PositioningDetermining where the vehicle is in relation to map elements (e.g., via MapMatching, GPS)e. DisplayVisually presenting information from the dat
38、abase to the user9. Nodes and Junctions9.1 DefinitionA node (0-cell) is a topologically significant point, such as a simple intersection of roadways orother linear features, or an endpoint of such a feature. A junction is a collection of more than one node thatrepresents a logical feature, such as a
39、 complex intersection.Node location is based on position as defined by centerline data.a. The centerline of a roadway is the center of the predominant width of the physical pavement (or othersurface), ignoring such local aberrations as turn-lane cutouts, shoulders, etc.b. For roads with center media
40、ns, vendors will state their criteria for representing single or multiple centerlines and nodes.c. The endpoint of a road is where its centerline ends (either in a “dead end“ or by intersecting in a “T“shape with another centerline roadway).9.2 Types of Nodes and Junctions9.2.1 ROADWAY NODES AND JUN
41、CTIONSResult from the intersection of roadways.a. An intersection is the meeting point of the centerlines of the intersecting roadways.1. A simple intersection is an intersection (without offsets) of two roadways (without center medians),which can be represented by one node (see Figure 2).SAE J1663
42、Issued AUG95-6-FIGURE 2SOME SIMPLE INTERSECTIONS2. A complex intersection is any intersection that is not simple. Some examples of complexintersections are the intersection of roadways involving offsets, central medians or somecombination of offsets and central medians which can generate multiple no
43、des depending on therepresentation used by the vendor. (See Figure 3.) The vendor shall state its policy for identifyingand classifying complex intersections.FIGURE 3SOME COMPLEX INTERSECTIONS9.2.2 ROADWAY ENDPOINT NODEThe endpoint of a roadway centerline.9.2.3 MISCELLANEOUS NODES AND JUNCTIONSResul
44、t from the intersection of roadway and non-roadway features(hydrography, railroads, political boundaries, etc.). Intersections of roads with non-road features such aspolitical units, physical features, and water features will not be tested. Nodes and junctions representing theintersection of roadway
45、 and non-roadway features are not critical to the applications for which this documentis intended.SAE J1663 Issued AUG95-7-10. Location and Existence of Attached Links10.1 LinkA link (1-cell) is a topological connection between two nodes. A link may contain additional intermediatecoordinates called
46、“shape points“ to better represent the shape of curved features.Crucial characteristics of a roadway link include its name(s), address range, roadway classification, geometry/shape and length.11. Road NamesThe text that identifies a road on roadside signs, road maps, and documents.11.1 Highway Names
47、The text that identifies a highway on roadside signs, road maps, and documents. Itconsists of the highway type or icon, e.g., Interstate, U.S., State, County Route, etc., route number (can bealphanumeric), and an optional modifier. A modifier is text following or preceding the number.For example, I-
48、80 Business Route has the modifier “Bus. Rt.“ (Other examples are “Alternate,“ “Truck Route,“etc.)11.2 Highway Alias NameA commonly used or officially designated name for a highway that is not a highwayname as defined previously.Examples: in Chicago I-290 is also called the Eisenhower Expressway, an
49、d portions of U.S. 41 are called LakeShore Drive. I-880 in Alameda County is also called the Nimitz Freeway.11.3 Street NameThe officially designated name for a road that is not a highway.11.4 Street Alias NameA commonly used or official alternate name for a street.12. Address RangeThe range of house (structure) alphanumeric sequence (typically numbers) associated witha particular name of a link. Address ranges will be specified by alphanumerical range (by block) and side ofthe street. A complete address includes the correct name of the link
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