For highway construction oregon department of transportation salem, oregon



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02925.69 Power Strip/Surge Protector - Add the following section:
02925.69 Power Strip/Surge Protector - Provide a rack mount surge suppression unit with plug-in protection for a minimum of six separate electronic devices. The rack mount surge suppression unit shall fit a standard 19 inch electronics rack and shall not exceed 1 rack unit in height. The surge suppression unit shall meet the following:


  • 15 amp capacity

  • Operating voltage of 120 Volts AC

  • Provide a minimum of six output receptacles (NEMA 5-15R), front-facing.

  • Operating temperature range: : -30 C to +60 C

  • UL 1449 listed


02925.70 Radar Traffic Detection Devices - Add the following subsection:
02925.70 Radar Traffic Detection Devices:
(a) Radar Traffic Detector - Contractor shall provide and install radar traffic detectors as shown on the plans. The radar traffic detectors shall be designed for queue detection, ramp metering, travel time prediction, and permanent traffic counting applications. Radar traffic detectors shall meet the following requirements:

Technology: Microwave radar

Frequency: 24 GHz

Lane detection: 6 (minimum), 3 each direction (minimum)

Detection range: Up to 250 feet

Mounting: Pole, side fire

Offset: Sensor shall be able to detect traffic at a distance of

of 40 feet from fog line with proper height and angle.

Measurement: Volume, occupancy, speed, and classification

Sampling rate of vehicles: Less than 5 msec

NTCIP Standards: 1201, 1209, 2101, 2104, 2201, 2202

Communication connectors: DB9 for RS-232, RJ-45 for Ethernet

Power: 120V AC 60 Hz

Housing: NEMA 4X

Temperature range: -40 to 165 F

Humidity range: 0 to 95%

Approvals: FCC Rule part 15 Class A

Wind: Up to 95 mph (minimum)

If DC power is required for the device submitted, the Contractor is responsible for providingsubmitting a DC power supply submittal with the variable speed systemtraffic sensor cabinet fabrication submittals.
Radar traffic detectors must be interface with Agency’s central Intelligent Devices, Incorporated software interface at no additional cost to Agency.
Radar traffic detectors must:


  • Measure 85th percentile speed within +/- 3 mph when there are at least 200 vehicles in one direction in a 15-minute time period

  • Measure average speed

  • Detect vehicles by lane

  • Detect vehicles bi-directionally

  • Aggregate data over user-defined intervals (minimum interval shall be 20 seconds)

  • Measure volume with at least 98% accuracy when at least 200 vehicles are measured in one direction in a 15-minute time period

  • Measure occupancy with at least 95% accuracy

The following radar traffic detector is known to meet the project requirements listed above:




  • RTMS G4

Other radar traffic detectors may be proposed, but they must meet the requirements listed above.

ODOT has central software that is NTCIP 1209 compliant and does not plan on using manufacturer specific software to be able to retrieve the traffic data from the traffic sensor. If the traffic sensor is unable to communicate with ODOT’s central, Intelligent Device’s NTCIP Device Tester will be used to determine the interoperability issue. Contractor shall modify their NTCIP communications if the traffic sensor is determined to not be non-compliant to NTCIP Device Tester.
The Contractor shall submit to the Engineer complete documentation in ASCII versions of the following MIB files in ASN.1 format:
(1) The relevant versions of each official NTCIP standard MIB module referenced by the device functionality.
(2) If the device does not support the full range of any given object within an NTCIP standard MIB module, provide a manufacturer specific version of the official NTCIP standard MIB module with the supported range indicated in ASN.1 format in the SYNTAX field of the OBJECT-TYPE macro. The filename of this file shall be the same as the standard MIN filename with the extension “.man”.
(3) Additionally, ASCII versions of any and all manufacturer specific objects and traps supported by the device in ASN.1 format in a manufacturer specific MIB with accurate meaningful DESCRIPTION fields and supported ranges indicated in the SYNTAX field of the OBJECT-TYPE and/or TRAP-TYPE macros.

(ab) Radar Stop Bar Detector - Contractor shall provide and install radar stop bar detectors as shown on the plans. The radar stop bar detectors shall be designed for queue detection and , ramp metering, travel time prediction, permanent traffic counting applications, and traffic loop replacement applications. Radar stop bar detectors shall meet the following requirements:

Technology: Microwave radar

Frequency: 24 GHz

Lane dDetection zones: 64 (minimum), 3 each direction (minimum)

Detection range: Up to 250100 feet (minimum)

Detection sweep angle: 90-degree


Mounting: Pole, side fire

Offset: Sensor shall be able to detect traffic at a distance of

40 feet from fog line with proper height and angle.

Measurement: Presence and Volume, occupancy, speed, and classificationcount

Sampling rate of vehicles: Less than 5 msec

NTCIP Standards: 1201, 1209, 2101, 2104, 2201, 2202



Communication connectors protocol: DB9 for RS-232 or RS-485, RJ-45 for Ethernet

Power: 120V AC 60 Hz

Housing: NEMA 4X

Temperature range: -40 to 165 F

Humidity range: 0 to 95%

Approvals: FCC Rule part 15 Class A

Wind: Up to 95 mph (minimum)

If DC power is required for the device submitted, the Contractor is responsible for submitting a DC power supply with the traffic sensor cabinet fabrication submittals.


ODOT has central software that is NTCIP 1209 compliant and does not plan on using manufacturer specific software to be able to retrieve the traffic data from the traffic sensor. If the traffic sensor is unable to communicate with ODOT’s central, Intelligent Device’s NTCIP Device Tester will be used to determine the interoperability issue. Contractor shall modify their NTCIP communications if the traffic sensor is determined to not be non-compliant to NTCIP Device Tester.
The Contractor shall submit to the Engineer complete documentation in ASCII versions of the following MIB files in ASN.1 format:
(1) The relevant versions of each official NTCIP standard MIB module referenced by the device functionality.
(2) If the device does not support the full range of any given object within an NTCIP standard MIB module, provide a manufacturer specific version of the official NTCIP standard MIB module with the supported range indicated in ASN.1 format in the SYNTAX field of the OBJECT-TYPE macro. The filename of this file shall be the same as the standard MIN filename with the extension “.man”.
(3) Additionally, ASCII versions of any and all manufacturer specific objects and traps supported by the device in ASN.1 format in a manufacturer specific MIB with accurate meaningful DESCRIPTION fields and supported ranges indicated in the SYNTAX field of the OBJECT-TYPE and/or TRAP-TYPE macros.
(bcb) Serial and DC Surge Protection - Provide surge protection device with the following specifications:


  • Pluggable screw terminals

  • Protected connectors for RS-232 and RS-485

  • DIN-rail mount


(cdc) Power Supply - Provide power supply with the following specifications:


  • Input voltage from 85 to 264 VAC (90-350 VDC)

  • Frequency range from 45 to 65 Hz

  • Output short-circuit protection

  • DIN-rail mount


(ded) Circuit Breaker - Provide circuit breaker with the following specifications:


  • Rated surge voltage of 4kV

  • Inflammability class UL 94

  • Nominal AC operating voltage of 250 V

  • AWG 26-8

  • DIN-rail mount


(efe) Detector Cable - Provide communication and power cables for connection to radar detector. Cables shall meet the following specifications:


  • Maximum cable diameter of 0.35 inches for the conduit sizes shown on the plans. The Contractor may, at no additional cost to the Agency, install larger cables and conduit to facilitate the work.

  • Compatible with selected Radar Traffic Detector and Lightning Surge Protector

  • Suitable for design cable-distances

  • Run continuously between terminations without splices

Provide cable for connection to radar detector that meets the MIL-C-26482 specification. The backshell shall be an environmentally sealed shell that offers excellent immersion capability, and is designed to interface with the appropriate MIL-C-26482 connector. All conductors that interface with the connector shall be encased in a single jacket; and the outer diameter of this jacket shall be within the backshell’s cable O.D. range to ensure proper sealing. The backshell shall have a strain relief with enough strength to support the cable slack under extreme weather conditions. Recommended connectors are Cannon’s KPT series; and recommended backshells are Glenair Series 37 cable sealing backshells. The MIL-C-26482 connector shall provide contacts for all data and power connections.

Between sensor and pole mounted Lightning Surge Protector:

  • Wavetronix Sensor Cable WX-SS-H701 or approved equal.

  • Cable length shall not exceed 60 feet.


Between pole mounted and cabinet Lightning Surge Protectors:

  • Alpha 6010-C cable or approved equal 3-pair separately shielded 22 AWG.

  • Cable length shall not exceed 300 feet.

The communication cable shall be Orion Wire Combo-2207-2002-PVCGY or approved equal with the following specifications:




  • Shielded, twisted pairs with a drain wire

  • Nominal Capacitance Conductor to Conductor @ 1Khz <= 71pF/Ft

  • Single continuous run with no splices allowed

  • Nominal Conductor DC Resistance @ 20 Deg C <= 10.3 ohms/1000Ft

  • The cable length shall not exceed 600 ft.

Between detector and pole mounted Lightning Surge Protector provide a sensor cable Orion Wire Combo-2207-2002-PVCGY or approved equal 3-pair separately shielded with a nominal conductor DC resistance of less than 11.5 ohms/1000 feet at 20C. Cable length shall not exceed 60 feet.


Between pole mounted and cabinet Lightning Surge Protectors provide Alpha 6010-C cable or approved equal 3-pair separately shielded 22 AWG. Cable length shall not exceed 300 feet.
(gff) Detector Mount - Provide radar detector mounting assembly that provides the necessary degrees of rotation to ensure proper installation. It shall be constructed of weather resistant materials and shall be able to support a 20-pound load. Typically, the RVSD is tilted off of vertical by 10-20 degrees. The RVSD shall be aligned so that the side-to-side (azimuth) angle is within approximately 2 degrees of perpendicular to the flow of traffic.

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