ISMA Traffic Signal Technician II Questions with Correct Answers The traffic field technician is responsible for performing what types of maintenance on signals? - Correct Answers Preventive and Emergency The single most important focus for the traffic signal field technician is? - Correct Answers Safety Three main categories of safety a traffic signal technician is responsible for? - Correct Answers Safety of motorist and pedestrians His or her own personal safety Safety of public and personal property Traffic signal field technicians perform several maintenance and repair functions above the ground and roadway typically using what two vehicles? - Correct Answers Bucket Truck Aerial lift (platform truck) While using a bucket truck or aerial lift what implement provides proper protection for the user? - Correct Answers Protective Harness What responsibilities (liability) does a Traffic signal technician have while involved in repair, testing or maintenance? - Correct Answers Legal liability Dealing with the public It is imperative that the traffic signal field technician maintain comprehensive what of all the steps taken during repair and maintenance of traffic signals? - Correct Answers Documentation What two instances are documentation required for a traffic signal field technician? - Correct Answers Routine maintenance Emergency repair The "word" public usually represents the following individuals (4): - Correct Answers Road users Area residents / Property owners Elected and appointed officials 1 / 3
The media
Several means of public interaction are (3): - Correct Answers Mail or email
Telephone contact Face to face meetings When dealing with the public, keep in mind that the routines of public users may be disrupted for periods of time during construction. How should a traffic signal field technician interact with the public? (5) - Correct Answers Always be polite Be confident when speaking Communicate clearly in understandable terminology Don't argue or threaten Don't provide information if you are uncertain of its accuracy.Traffic signal controller units of todays traffic systems are controlled by what? - Correct Answers Microprocessor The microprocessor is programmed to recognize what? - Correct Answers Input requests from vehicle detection systems A microprocessor takes appropriate action to control intersection what? - Correct Answers Timing A forerunner of the electronic controllers that we have today was the? - Correct Answers Electro- mechanical controller What year where solid state electronic controllers developed to replace the electro-mechanical controllers? - Correct Answers 1970's What two improvements differentiated electronic controllers from electro-mechanical controllers? - Correct Answers More dependable Added many more features What was the standardization that primarily established a pin configuration in the controller and defined a function for every pin? - Correct Answers NEMA TS-1 2 / 3
The NEMA TS-1 has three connectors which where known as: - Correct Answers A,B, and C connectors NEMA TS-1 had how many connectors? - Correct Answers Three The NEMA TS-1 defined every pin for each connector as either what two connection types? - Correct Answers Input or Output NEMA also allowed manufactures to add an additional feature on the fourth connector. What was this connector know as? - Correct Answers D connector What was the D connector commonly used for? - Correct Answers Communications Pre-emption Other special features What three agencies joined together to help develop the 170 controller? - Correct Answers California DOT City of Los Angeles California New York State DOT What controller is an open-architecture based general purpose microcomputer for traffic control? - Correct Answers Model 170 controller What two specifications does the model 170 controller require? - Correct Answers A specific hardware architecture A specific processor How is the Type 179 controller specification similar to the 170 specification?(2) - Correct Answers Open architecture Allows for interchangeability of components What is the primary difference between the 179 and 170 controller - Correct Answers Uses a different microprocessor
- / 3