1、NEMA Standards PublicationNational Electrical Manufacturers AssociationANEMA TS 1-1989 (R2005)Traffic Control Systems (Not Recommended for New Designs)NEMA Standards Publication TS 1-1989 (R1994, R2000, R2005)Traffic Control Systems (Not Recommended for New Designs)Published by:National Electrical M
2、anufacturers Association1300 North 17th Street, Suite 1847Rosslyn, VA 22209 Copyright by the National Electrical Manufacturers Association. All rights including translation into other languages, reserved under the Universal Copyright Convention, the Berne Convention for the Protection of Literary an
3、d Artistic Works, and the International and Pan American Copyright Conventions.NOTICE AND DISCLAIMERThe information in this publication was considered technically sound by the consensus of persons engaged in the development and approval of the document at the time it was developed. Consensus does no
4、t necessarily mean that there is unanimous agreement among every person participating in the development of this document.The National Electrical Manufacturers Association (NEMA) standards and guideline publications, of which the document contained herein is one, are developed through a voluntary co
5、nsensus standards development process. This process brings together volunteers and/or seeks out the views of persons who have an interest in the topic covered by this publication. While NEMA administers the process and establishes rules to promote fairness in the development of consensus, it does no
6、t write the document and it does not independently test, evaluate, or verify the accuracy or completeness of any information or the soundness of any judgments contained in its standards and guideline publications.NEMA disclaims liability for any personal injury, property, or other damages of any nat
7、ure whatsoever, whether special, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, application, or reliance on this document. NEMA disclaims and makes no guaranty or warranty, express or implied, as to the accuracy or completeness of any informa
8、tion published herein, and disclaims and makes no warranty that the information in this document will fulfill any of your particular purposes or needs. NEMA does not undertake to guarantee the performance of any individual manufacturer or sellers products or services by virtue of this standard or gu
9、ide.In publishing and making this document available, NEMA is not undertaking to render professional or other services for or on behalf of any person or entity, nor is NEMA undertaking to perform any duty owed by any person or entity to someone else. Anyone using this document should rely on his or
10、her own independent judgment or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstances. Information and other standards on the topic covered by this publication may be available from other sources, which the user may wis
11、h to consult for additional views or information not covered by this publication.NEMA has no power, nor does it undertake to police or enforce compliance with the contents of this document. NEMA does not certify, test, or inspect products, designs, or installations for safety or health purposes. Any
12、 certification or other statement of compliance with any health or safetyrelated information in this document shall not be attributable to NEMA and is solely the responsibility of the certifier or maker of the statement.Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Section 7 Section 8
13、Section 9 Section 10 Section 11 Section 12 Section 13 Section 14 Section 15 STD-NEMA TS 1-ENGL 1989 TABLE OF CONTENTS pape FOREWORD i SCOPE. ii DEFINITIONS 1 ENVIRONMENTAL STANDARDS AND TEST PROCEDURES. . 12 (Superseded by Sections 13 and 14, July 1984) (Superseded by Sections 13 and 14, July 1984)
14、SOLID-STATE LOAD SWITCHES. 27 CONFLICT MONITORS. . 3 1 (Superseded by Section 15, August 1986) SOLID-STATE FLASHERS . 43 (Reserved) TERMINALS AND FACILITIES. 46 (Superseded by Section 15, August 1986) (Reserved) INTERFACE STANDARDS FOR ADVANCED TWO-PHASE THROUGH EIGHT-PHASE SOLID-STATE TRAFFIC CONTR
15、OLLER UNITS. . 54 DEFINITIONS AND PHYSICAL AND FUNCTIONAL STANDARDS FOR ADVANCED TWO-PHASE THROUGH EIGHT-PHASE SOLID-STATE TRAFFIC SIGNAL CON- TROLLER UNITS OF THE VEHICLE-ACTIVATED TYPE. . 58 INDUCTIVE LOOP DETECTORS 72 STD-NEMA TS 1-ENGL 1989 m b470247 O514752 162 m - - Foreword These standards de
16、fine traffic signalling equipment that can be safely installed to render the intended functions. Properly manufactured traffic control systems are, however, only one factor in minimizing potential hazards that may be associated with the use of electricity. The reduction of hazard involves the joint
17、efforts of the various equipmment manufacturers, the system designer, the installer, and the user. Infor- mation provided herein is intended to assist users and others in the selection of traffic signalling equip- ment that will meet their technical needs. This publication has, therefore, been promu
18、lgated with a view towards reducing the hazard to persons and property when traffic signalling equipments conforming with these standards are properly selected and installed. Comments and suggestions for the improvement of this document will be welcomed. They should be sent to: Manager, Engineering
19、Department National Electrical Manufacturers Association 2101 L Street, N.W. Washington, DC 2037 1 - STD-NEMA TS 1-ENGL 1989 D b470247 0534753 OT9 - Scope This Standards Publication covers widely used traffic signalling systems that are used to facilitate and expedite the safe flow of pedestrian and
20、 vehicular traffic. The standards reflect study of inputs from traffic engineers and installers of traffic signalling equipment and professional organizations in the field of traffic control. This publication supersedes TS 1-1983, Trafic Control Systems, and its revisions. ii - STD-NEMA TS 3-ENGL 37
21、87 m b4702L17 0534754 T35 m - TS 1-1989 Page 1 Section 1 DEFINITIONS The words and phrases defined in the following sections shall, for the purpose of these standards, have the meanings ascribed to them herein. These definitions reflect the consensus of the trafic control equipment industry as repre
22、sented by NEMA and are intended to be in harmony with terminology in current usage, such as is published in the “Manual on Uniform Paflc Control Devices” and various technical reports of the Institute of Transportation Enfineers. 1.1 CONTROL EQUIPMENT 1.1.1 Auxiliary Equipment to a controller assemb
23、ly. Separate devices used to add supplementary features NEMA Standard 11-6-1975. 1.1.2 Barrier See 14.1.2. 1.1.3 Cabinet and associated equipment. An outdoor enclosure for housing the controller unit NEMA Standard 1 1-6-1 975. 1.1.4 Call at a controller unit. A registration of a demand for right-of-
24、way by traffic 1.1.4.1 SERVICEABLE CONFLICTING CALL A call which: 1. Occurs on a conflicting phase not having the right-of-way at the time the call is placed. 2. Occurs on a conflicting phase which is capable of responding to a call. 3. When occurring on a conflicting phase operating in an occupancy
25、 mode, remains present until given its right-of- way. NEMA Standard 11-6-1975. 1.1.5 Check unanswered call. An outgoing circuit that indicates the existence of NEMA Standard 11-6-1975. 1.1.6 Controller Assembly A complete electrical mechanism mounted in a cabinet for controlling the operation of a t
26、raffic control signal. 1.1.6.1 FLASHER CONTROLLER ASSEMBLY signal or beacon. A complete electrical mechanism for flashing a traffic * Institute of Transportation Engineers, 525 School Street, S.W., Washington, D.C. 20024. - NEMA Standard 11-6-1975. 1.1.6.2 FULL-TRAFFIC-ACTUATED CONTROLLER As- A type
27、 of traffic-actuated controller assembly in which means are provided for traffic actuation on all approaches to the intersection. 1.1.6.3 ISOLATED CONTROLLER ASSEMBLY under master supervision. 1.1.6.4 MASTER CONTROLLER ASSEMBLY A controller assembly for supervising a system of secondary controller a
28、ssemblies. 1.1.6.5 MASTER-SECONDARY CONTROLLER ASSEM- A controller assembly operating traffic signals and providing supervision of other secondary controller as- semblies. 1 .1.6.6 OCCUPANCY CONTROLLER ASSEMBLY (LANE- OCCUPANCY CONTROLLER OR DEMAND CON- TROLLER, AND PRESENCE CONTROLLER) A traffic-ac
29、tuated controller which responds to the presence of vehicles within an extended zone of detec- tion. 1.1.6.7 PEDESTRIAN-ACTUATED CONTROLLER As- A controller assembly in which intervals, such as pedestrian WALK and clearance intervals, can be added to or included in the controller cycle by the actuat
30、ion of a pedestrian detector. 1.1.6.8 PRETIMED CONTROLLER ASSEMBLY nals with predetermined: SEMBLY A controller assembly for operating traffic signals not BLY SEMBLY A controller assembly for the operation of traffic sig- 1. Fixed cycle length(s). 2. Fixed interval duration(s). 3. Interval sequence(
31、s). (SLAVE) 1.1.6.9 SECONDARY CONTROLLER ASSEMBLY A controller assembly which operates traffic signals under the supervision of a master controller assembly. TS 1-1989 Page 2 1.1.6.1 O SEMI-TRAFFIC-ACTUATED CONTROLLER As- A type of traffic-actuated controller assembly in which means are provided for
32、 traffic actuation on one or more but not all approaches to the intersection. SEMBLY 1.1.6.1 1 TRAFFIC-ACTUATED CONTROLLER ASSEM- A controller assembly for supervising the operation of traffic control signals in accordance with the varying demands of traffic as registered with the controller by dete
33、ctors. NEMA Standard 11-6-1975. BLY 1.1.7 Controller Unit l(Dispatcher or Timer) A controller unit is that portion of a controller assem- bly that is devoted to the selection and timing of signal displays. 1.1.7.1 DIGITAL CONTROLLER UNIT A controller unit whetein timing is based upon a defined frequ
34、ency source such as a 68hertz alternating current source. (See 1. I .43.3) 1.1.7.2 DUAL-RING CONTROLLER UNIT See 14.1.3.1. 1 .! .7.3 MINOR MOVEMENT CONTROLLER UNIT A device that can be added to a controller assembly to provide subordinate phase timing. 1.1.7.4 SINGLE-RING CONTROLLER UNIT See 14.1.3.
35、2. 1.1.7.5 SYNCHRONOUS CONTROLLER UNIT A controller unit in which the 3ming mechanism is controlled by and dependent on a suitable frequency standard such as the frequency of the altemating-current source. 1 .1 .7.6 SYNCHRONOUS-MOTOR CONTROLLER UNIT A controller unit operated by 2 synchronous motor
36、which maintains a constant speed delermined by the frequency of the power supply circuit. NEMA Standard 4-7-1983. 1 .I .8 Coordinator unit to others. (See 1.1.26) A device used to relate the timing of one controller NEMA Standard 1 1-6-1975. 1.1.9 Cycle In a pretimed controller unit, a complete sequ
37、ence of signal indication. In an actuated controller unit, a com- plete cycle is dependent on the presence of calls on all phases. 1.1.9.1 CYCLE LENGTH cycle. The time period in seconds required for one complete NEMA Standard 11 -6-1 975. 1.1.10 Density the number of vehicles per mile per lane. A me
38、asure of the concentration of vehicles, stated as NEMA Standard 11-6-1975. 1.1.1 1 Detector See 1.2.6. 1.1.12 Device 1.1.12.1 ELECTROMECHANICAL DEVICE utilizing relays, step switches, motors, etc. A device which is characterized by electrical circuits 1.1.12.2 ELECTRONIC DEVICE A device which is cha
39、racterized by electrical circuits utilizing vacuum tubes, resistors, capacitors, inductors and which may include electromechanical and solid-state devices. 1.1.12.3 SOLID-STATE DEVICE A device which is characterized by electrical circuits, the active components of which are semi-conductors, to the e
40、xclusion of electromechanical devices or tubes. NEMA Standard 1 1-6-1 975. 1.1.13 Dwell See “rest”, 1.1.37 1.1.14 Extension, Unit The timing interval during the extensible portion which is resettable by each detector actuation. The green right-of-way of the phase may terminate on expiration of the u
41、nit extension time. (See 1.1.21.1 .) NEMA Standard 1 1-6-1 975. 1.1.15 Entry See 14.1.4. - STD-NEMA TS 3-ENGL 3989 6470247 O534755 973 - 1.1.1 6 Flasher repetitive rate. A device used to open and close signal circuits at a NEMA Standard 11-6-1975. 1.1.17 Force Off right-of-way. A command that will f
42、orce the termination of the NEMA Standard 11 -6-1 975. 1.1.18 Gap Reduction A feature whereby the “unit extension” or allowed time spacing between successive vehicle actuations on the phase displaying the green in the extensible portion of the interval is reduced. NEMA Standard 11 -6-1 975. 1.1.19 H
43、old A command that retains the existing right of way. NEMA Standard 11-6-1975. 1.1.20 Interval signal indications do not change. The part or parts of the signal cycle during which 1.1.20.1 MINIMUM GREEN INTERVAL The shortest green time of a phase. If a time setting control in designated as “minimum
44、green”, the green time shall be not less than that setting. 1.1.20.2 PEDESTRIAN CLEARANCE INTERVAL The first clearance interval following the pedestrian WALK indication, normally flashing DONT WALK. 1.1.20.3 RED CLEARANCE INTERVAL A clearance interval which may follow the yellow interval during whic
45、h both the terminating phase and the next right-of-way phase display red. 1.1.20.4 SEQUENCE, INTERVAL successive intervals of a cycle. The order of appearance of signal indications during 1.1.20.5 YELLOW CHANGE INTERVAL The first interval following the green right-of-way in- terval in which the sign
46、al indication for that phase is yellow. NEMA Standard 11 -6-1 975. TS 1-1989 Page 3 1.1.21 Limit 1.1.21.1 EXTENSION LIMIT The maximum time of the extensible portion for which actuations on any traffic phase may retain the right of way after actuation on an opposing traffic phase. 1.1.21.2 MAXIMUM LI
47、MIT which may start in the initial portion. The maximum green time after an opposing actuation, NEMA Standard 11-6-1975. 1.1.22 Manual 1.1.22.1 MANUAL OPERATION The operation of a controller assembly by means of a hand-operated device(s). A pushbutton is an example of such a device. 1.1.22.2 MANUAL
48、PUSHEUTTON assembly. An auxiliary device for hand operation of a controller NEMA Standard 11-6-1975. 1.1.23 Memory 1.1.23.1 DETECTOR MEMORY the controller assembly The retention of an actuation for future utilization by 1.1 23.2 NONLOCKING MEMORY does not require detector memory. A mode of actuated-
49、controller-unit operation which NEMA Standard 1 1-6-1 975. 1.1.24 Modular Design A design concept such that functions are sectioned into plug-in units which can be readily exchanged with simi- lar units. NEMA Standard 1 1-6-1 975. 1.1.25 Monitor, Signal Conflict A device used to continually check for the presence of conflicting signal indications and to provide an output in response to conflict. NEMA Standard 1 1-6-1 975. 1.1.26 Offset Offset is the time relationship, expressed in seconds or percent of cycle length, determined by the difference between a defined interval portion of the co
