1、Designation: E2667 09 (Reapproved 2017)Standard Practice forAcquiring Intersection Turning Movement Traffic Data1This standard is issued under the fixed designation E2667; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of
2、 last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice for intersection turning movement dataacquisition was developed to improve its quality by specifyingthe
3、 data items to be collected and a procedure for documentingthe results. Such a practice will provide the ability to comparethese data over time within governmental agencies and amongdifferent governmental agencies. While there are national andinternational standards for road segment traffic data, th
4、ere isnot a practice for intersection turning movement data acquisi-tion.1.2 UnitsThe values stated in inch-pound units are to beregarded as the standard. The values given in parentheses aremathematical conversions to SI units that are provided forinformation only and are not considered standard.1.3
5、 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Docu
6、ments2.1 ASTM Standards:2E2300 Specification for Highway Traffic Monitoring De-vicesE2532 Test Methods for Evaluating Performance of High-way Traffic Monitoring Devices3. Terminology3.1 Definitions:3.1.1 base data integrity, nretention of original collecteddata in uncorrupted form.3.1.2 truth in dat
7、a, ndescription of how data are collected,summarized, reported and retained so potential data users canrecalculate summary statistics from the original collected data.3.1.3 vehicle count (volume), ntotal number of vehiclesobserved or predicted to pass a point on a lane or roadwayduring a specified t
8、ime interval (see Specification E2300 andPractice E2532).3.2 Definitions of Terms Specific to This Standard:3.2.1 adaptive control, na traffic signal controller thatcontinuously changes the timing of signal phases based oninterpretation of traffic information received from multiplesensors.3.2.2 beac
9、on, na flashing signal at an intersection thatmay be constant or actuated.3.2.3 intersection turning movement, n vehicle movementby lane to and through an intersection.3.2.4 intersection turning movement count, ntotal numberof vehicles observed or predicted to move by lane to andthrough an intersect
10、ion during a specified time interval.3.2.5 intersection turning movement count, ntotal numberof vehicles observed or predicted to move by lane to andthrough an intersection during a specified time interval.3.2.6 pretimed control, na traffic signal controller thatchanges signal phases based on a fixe
11、d time period.3.2.7 total intersection traffc, ntotal number of vehiclesin all lanes observed to pass to and through an intersectionduring a specified time interval.4. Significance and Use4.1 This practice will permit various agencies to compareintersection turning movement data using two foundation
12、alprinciples, truth in data and base data integrity. These twoprinciples help ensure that intersection turning movementcounts can be correctly interpreted and appropriately used toimprove the safe and efficient operation of intersections. Theprinciples may be summarized as follows:4.1.1 Truth in dat
13、a principleThe truth in data principleprovides information that assists potential data users to under-stand what the data do and do not mean. The opportunity tocollect data that advise safe and efficient transportation carrieswith it the obligation to report how the data were collected,edited, summa
14、rized, and reported.4.1.2 Base data integrity principleThe principle of basedata integrity retains the field data collected. In keeping withthe principle of base data integrity, it is possible to look at the1This practice is under the jurisdiction of ASTM Committee E17 on Vehicle -Pavement Systems a
15、nd is the direct responsibility of Subcommittee E17.52 onTraffic Monitoring.Current edition approved Jan. 1, 2017. Published January 2017. Originallyapproved in 2009. Last previous edition approved in 2009 as E2667 09. DOI:10.1520/E2667-09R17.2For referenced ASTM standards, visit the ASTM website, w
16、ww.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis
17、international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT
18、) Committee.1original data to verify any subsequent changes to the data. Inintersection turning movement and other data collectionactivities, field data may be edited, adjusted, and then summa-rized and reported. Whatever steps are taken to ensure thequality of the data summarized, the base data mus
19、t not becorrupted. In keeping with the principle of truth in data, editingand adjustments are documented.5. Procedure5.1 The following information will be provided for eachintersection turning movement count. If the information soughtis not applicable, “NA” should be entered. If the informationsough
20、t was not collected, “NC” should be entered. A responseto each item is required for the turning movement count to beaccepted.5.1.1 Intersection Type5.1.1.1 Intersection Diagram:(1) Approach:(A) Location (point of reference):(i) Physical description of the intersection(ii) Global positioning system (
21、GPS) location:(a) Device type(b) Measurement errorNOTE 1The maximum acceptable error is 610 ft (3 m).(B) Bearing angleNOTE 2The maximum acceptable error is 610.(C) Lanes(D) Traffic control:(i) Unsignalized:(a) No control(b) Sign(c) Beacon(ii) Signalized:(a) Pretimed control(b) Actuated control(c) Ad
22、aptive control5.1.1.2 Land use:(1) Institute of Transportation Engineers (ITE) land-usecode:3(A) The land use is coded for each intersection approach.(B) Land-use location is based on the physical descriptionof the intersection in 5.1.1.1(1)(A)(i)(2) Nearest curb cut to the intersection for each app
23、roach:(A) Distance is measured from the closest edge of thecurb cut to the intersection corner.(B) The intersection corner is formed by the side of thestreet on which the nearest curb cut is located and a point online with the intersecting street curb.NOTE 3The maximum acceptable error is 610 ft (3
24、m).5.1.2 Count Context5.1.2.1 Person(s) simultaneously recording the turningmovements based on the number of concurrent movements tocount:(1) Number of persons(2) Positioning of persons:(A) Intersection quadrant(B) GPS location5.1.2.2 Technology used to record the turning movements:(1) Device type(s
25、), serial number(s), and software ver-sion(s)(2) Number of devices(3) Positioning of devices(4) Manufacturer guidance on number of devices andpositioning5.1.2.3 Confirmation of representative traffic conditions:(1) Date and time(2) Incident(s) during count period one major intersectionin each direct
26、ion(3) Street construction during count period three majorintersections in each direction5.1.2.4 Weather:(1) Impact on the traffic data from specific weather duringthe intersection turning movement count(2) Impact on the traffic data from seasonal weather char-acteristics (such as time of sunrise an
27、d sunset for obscuringsome technology based observations)5.1.3 Count5.1.3.1 Count day, time, and period5.1.3.2 Count type:(1) Manual:(A) Paper data entry(B) Computer data entry and summarization interval(2) Machine data summarization interval by device type5.1.3.3 Break or interruption of the count:
28、(1) Time(2) Duration(3) Cause5.1.3.4 Data type:(1) Volume(2) Classification:(A) Passenger car and truck(B) Federal Highway Administration (FHWA) 13 vehicleclassification4(C) Other(3) Pedestrian(4) Bicycle(5) Other5.1.3.5 Base data retention:(1) Period(2) Format:(A) Electronic(B) Print5.1.4 Count Con
29、sistency with Reference Dataset5.1.4.1 Reference dataset:(1) Data type:(A) Volume(B) Classification:3Trip Generation, 7th Edition, Institute of Transportation Engineers,Washington, D.C., 2003.4Heavy Vehicle Travel Information System Field Manual, Office of HighwayPolicy Information, Federal Highway
30、Administration, March 2002,www.fhwa.dot.gov/policyinformation.E2667 09 (2017)2(i) Passenger car and truck(ii) Federal Highway Administration (FHWA) 13 vehicleclassification(iii) Other(C) Pedestrian(D) Bicycle(E) Other(2) Period:(A) Short-term traffic monitoring by approach(B) Continuous traffic moni
31、toring at one or more ap-proaches(C) Other(3) Method:(A) Pneumatic tube(B) Inductive loop(C) Camera:(i) Video recording for manual post-processing identifi-cation of turning movements(ii) Video image processing for computerized, real-timeidentification of turning movements(D) Other5.1.4.2 Measuremen
32、t Comparison:(1) Difference between the total intersection turning move-ment count and the reference datasetNOTE 4The maximum difference between the intersection turningmovement count and the reference dataset is 610 % of total intersectiontraffic for the complete count period.(2) Difference between
33、 the total intersection AM peak hourturning movement count and the reference datasetNOTE 5The maximum difference between the intersection turningmovement count and the reference dataset is 610 % of total intersectiontraffic in the AM peak hour.(3) Difference between the total intersection PM peak ho
34、urturning movement count and the reference datasetNOTE 6The maximum difference between the intersection turningmovement count and the reference dataset is 610 % of total intersectiontraffic in the PM peak hour.5.1.5 Turning Movement Count Repeatability5.1.5.1 Personnel:(1) Method of establishing rep
35、eatability of manual counts(for example, post-training or other side-by-side counts of thesame intersection turning movements)(2) Repeatability of manual counts by type of intersectionNOTE 7The maximum acceptable difference is 610 % for the totalturning movement count, the AM peak hour, and the PM p
36、eak hour.5.1.5.2 Technology:(1) Manufacturer estimate of error (for example, 65 % for95 % of the data summarization intervals during a 24-h period)(2) Field errors:(A) Method of establishing repeatability of technologybased counts:(i) Visual comparison(ii) Side-by-side count(iii) Other(B) Repeatabil
37、ity of technology based counts by type ofintersection:(i) At the specific intersection(ii) By intersections grouped on the basis of:(a) Traffic volume(b) Number of approaches(c) Functional classification(d) Other5.1.6 Data Reduction5.1.6.1 Data assessment:(1) Missing data(2) Inaccurate data (see 5.1
38、.4.2)5.1.6.2 Data construction:(1) Data completion(2) Data modification5.1.6.3 Data representation:(1) Summary statistics(2) Tabular presentation(3) Graphic presentation(4) Images(5) Words5.1.6.4 Data reduction retention:(1) Period(2) Format:(A) Electronic(B) Print5.1.7 Count Narrative5.1.7.1 Person
39、nel:(1) Who conducted the count:(A) Organization(B) Names of personnel(2) Who prepared this report for submittal:(A) Name(B) Title(C) Contact information5.1.7.2 Observation of uncounted intersection movements:(1) Avoidance of intersection by cutting through adjacentproperty:(A) Count:(i) Time(ii) Lo
40、cation(B) Uncounted approximation:(i) Time(ii) Location5.1.7.3 Observation of illegal intersection movements:(1) Vehicle:(A) Description of movement(B) Description of vehicle or vehicles(C) Count(D) Uncounted approximation(E) Time(F) Location(2) Bicycle:(A) Description of movement(B) Description of
41、vehicle or vehicles(C) Count(D) Uncounted approximation(E) TimeE2667 09 (2017)3(F) Location(3) Pedestrian:(A) Description of movement(B) Count(C) Uncounted approximation(D) Time(E) Location5.1.7.4 Other observations that clarify the count5.1.7.5 Other observations that clarify the safety and opera-t
42、ion of the intersection6. Report6.1 The person responsible for collecting the turning move-ment data or their designated representative shall prepare awritten report when data acquisition is complete. The reportshall include the information enumerated in Section 5 thatdescribes the intersection, met
43、hodology, and traffic data col-lected.7. Keywords7.1 base data integrity; intersection turning movement data;traffic intersection; traffic monitoring; truth in dataASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this
44、standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be r
45、eviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of therespon
46、sible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West
47、 Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 09 (2017)4
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