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WAVE Background Information

Wireless Access in Vehicular Environments for the 5.9 GHz band. WAVE Background Information.

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WAVE Background Information

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  1. Wireless Access in Vehicular Environments for the 5.9 GHz band WAVE Background Information Broady Cash, ARINC

  2. In 1999, the FCC allocated 75MHz of spectrum at 5.850-5.925 GHz, right above the UNII band, for a “wireless link to transfer information between vehicles and roadside systems” and between vehicle systems. Congress directed the Department of Transportation to develop a standard to insure device interoperation in the DSRC band. This standard will form the basis for the FCC rules for this band. The Federal Highway Administration chartered ASTM to do the lower layer standards development. Spectrum Acquisition Process Broady Cash, ARINC

  3. Spectrum allocated in 1999 NPRM processed in 2003 Comments generally positive Non-controversial, general agreement to approach and use of ASTM E2213 standard as basis for rules. Ruling announced 17 Dec 2003 RO release expected by end of Jan 2004 FCC Ruling Status Broady Cash, ARINC

  4. Directs the 5.9 GHz band to be used primarily for public safety purposes and limited non-public safety uses Open Eligibility for Licensing Adopted the ASTM E2213 standard Adopted geographic area licensing regime for RSUs with registration by site and segments before operation Adopted licensing by rule for OBUs Operations in the 5.9 GHz band must coordinate frequencies through the NTIA FCC Rules Summary Broady Cash, ARINC

  5. ASTM E2213-03 is based on 802.11a Was published in September 2003 www.astm.org Written as an amendment to the 802.11a amendment Significant PHY changes, but specifically designed to allow industry standard 802.11a chips to support WAVE/DSRC Minor MAC function additions – simple firmware updates to industry standard 802.11 firmware ASTM E2213 Standard Status Broady Cash, ARINC

  6. Safety Intersection collision warning, stopped vehicle hazard warning, emergency vehicle approach warning, work zone warning, road hazard warning, etc. Information: “Roadside Kiosk” Traffic advisory, road construction, weather conditions, upcoming exit services, map updates, etc. Internet Access Hot-Spots Provided by service stations, truck stops, retail store parking lots, etc. Fleet Management Port of entry, asset tracking, security, scheduling Electronic Payment Toll plazas, service stations, drive-through venues, truck stops, etc. Transportation Related Applications Broady Cash, ARINC

  7. USERREQUIREMENTS Broady Cash, ARINC

  8. USER REQUIREMENTS Interoperability across North America - where All RSUs can communicate with ALL OBUs and ALL OBUs can communicate to ALL other OBUs at the lowest tier of capability. Also, tiered devices shall be implemented such that each level of device can implement all the modes of operation of the levels of devices below it. All Weather Operation Two-way (roadside to vehicle) Communication Two-way (vehicle to vehicle) Communication subject to review of impact on system requirements One-way Communication - Require broadcast capability without being part of a net Extremely low latency in the order of milliseconds - Includes acquisition and data transfer The system will support authentication and access controls (Layers 1 and 2 must support security controls) Reliable (High MTBF and communications performance as indicated in the specific requirements) The RSU must be Maintainable (Low MTTR) Easy to use Scalable (grow from one to multiple lanes of service) Widely Installable (few incompatible sites) Broady Cash, ARINC

  9. USER REQUIREMENTS (continued) • Non-Interference with 915 MHz systems • Non-Interference to incumbent (primary allocation) 5.9 GHz systems • Minimize interference with secondary allocation 5.9 GHz systems • Tolerant of inadvertent interference from incumbent 5.9 GHz systems • The ISO L1 and L2 must be able to handle a large number of units in the • communication zone. On the order of 50 to 100. The system must not • collapse if this number is exceeded. • Transaction Size -- 500 Bits to 100 Mbytes or more • Traffic Speed -- 0 to 200 km/h (0 to 120 mph ) • Traffic Flow Rate -- 3000 v/h/l - (1 to 8 lanes) • Minimum coordinated RSU Separation -- 3 m (10 ft) • Must allow uncoordinated RSUs implementing different services on the same • channel to operate in close proximity -- 15 m (50 ft) or less - Enable acceptable • levels of interference between neighboring DSRC applications • Broadcast Reception Range for all On-board Units -- 325 m (1100 ft) at • a standard selected RSU power output Broady Cash, ARINC

  10. USER REQUIREMENTS (continued) • Communication zones shall be variable from 2 to 1000m (7 to 3000 ft); i.e., • Two-way Range for all devices -- 15 m (50 ft) • Two-way Range for some devices -- 30 m (100 ft) • Two-way Range for some devices -- 100 m (300 ft) • Two-way Range for some devices -- 300 m (1000 ft) • Two-way Range for some devices -- 1000 m (3000 ft) • Transaction Success Rate -- 99.0 to 99.995 % • Enable Licensed Operation • Implement Vehicle Location • Implement Lane Discrimination (implies specification on antenna type and • OBU mounting) • Implement a High Density of Applications • Support Multiple Overlapping Communication Zones • Meet FCC, Industry Canada, and Mexican Government Regulations • Enable An Entry Level - low cost - device • Does Not Require Usage Fees • Multi-modal (road and rail) Broady Cash, ARINC

  11. DERIVED REQUIREMENTS • Max Speed - 200 km/h • 1000 m range must support 1 Mbps • Enable Dedicated service • The OBE must be able to negotiate the frequency of operation • Must provide prioritized media access • Must be Able to Support Protected Operation • Implement a tier of device types to scale device capability from the lowest • to highest raw data rate - 2 to 27/54 Mbps and 15 to 1000 m range to • match application requirements to device complexity Broady Cash, ARINC

  12. GOALS in Addition to the Requirements • Maximize communication between radar pulses near co-channel radar installations. • Minimize high angle radiation to stay below the aggregate radiation level required to prevent interference with satellite receivers. Broady Cash, ARINC

  13. Operational Concept Summary • 5.850 to 5.925 GHz Channels follow FCC CFR part 90 or Industry Canada rules • Announcements of available application services, warnings messages, and safety status messages are broadcast by RSUs or OBUs periodically on the Control Channel • OBU replies are made on the service channel listed in the announcement • OBUs follow RSU instructions in Service Channels • Control and Service Channel transmission time limits comply with IEEE P1609.4 • 2 small zone Service Channels are designated for extended data transfers • 2 medium zone Service Channels are designated for extended data transfers • 2 Service Channels are designated for special safety critical applications • All users can use all channels within the required power limits and restrictions • Public safety applications and messages have priority in all channels Broady Cash, ARINC

  14. 5.9 GHz 10 MHz Channels Shared Public Safety/Private Dedicated Public Safety Med Rng Service Hi Av-Low Lat Intersections Short Rng Service Control Power Limit 43 dBm 40 dBm Power Limit 33 dBm Power Limit 23 dBm Uplink Downlink Public Safety Veh-Veh Public Safety/ Private Public Safety/ Private Public Safety/ Private Public Safety/ Private Public Safety Intersections Control Channel Ch 180 Ch 182 Ch 172 Ch 184 Ch 178 Ch 174 Ch 176 5.925 5.875 5.880 5.905 5.910 5.850 5.855 5.860 5.865 5.870 5.885 5.890 5.895 5.900 5.920 5.825 5.845 5.835 5.830 5.915 5.840 Frequency (GHz) Canadian Special License Zones* Broady Cash, ARINC

  15. 5.9 GHz 10 and 20 MHz Channels Shared Public Safety/Private Dedicated Public Safety Hi Av-Low Lat Med Rng Service Intersections Short Rng Service Control Power Limit 43 dBm 40 dBm Power Limit 33 dBm Power Limit 23 dBm Uplink Downlink Public Safety Veh-Veh Public Safety/ Private Public Safety/ Private Public Safety/ Private Public Safety/ Private Public Safety Intersections Control Channel Ch 180 Ch 182 Ch 172 Ch 184 Ch 178 Ch 174 Ch 176 5.875 5.880 5.905 5.910 5.850 5.855 5.860 5.865 5.870 5.885 5.890 5.895 5.900 5.920 5.925 5.825 5.845 5.835 5.830 5.915 5.840 Frequency (GHz) Canadian Special License Zones* Broady Cash, ARINC

  16. 5.7250 to 5.925 GHz UNII and WAVE Channels Private Shared Public Safety/Private Dedicated Public Safety Unlicensed Med Rng Service Intersections Short Rng Service Control Hi Av-Low Lat US UNII Allocation US WAVE/DSRC Allocation US Spread Spectrum Allocation Licensed Un-licensed Uplink Downlink Ch 172 UNII Ch 149 Ch 153 Ch 157 Ch 161 Ch 175 Ch 181 Ch 178 Ch 184 Control Channel 5.825 5.830 5.835 5.845 5.850 5.855 5.860 5.865 5.870 5.875 5.880 5.885 5.890 5.895 5.900 5.905 5.910 5.915 5.920 5.925 5.840 5.725 5.730 5.735 5.745 5.750 5.755 5.760 5.765 5.770 5.775 5.780 5.785 5.790 5.795 5.800 5.805 5.810 5.815 5.820 5.740 Frequency (GHz) Ch - Channel Broady Cash, ARINC

  17. POSSIBLE IN–VEHICLECONFIGURATIONS Broady Cash, ARINC

  18. Basic Configuration Example Other ITS Communications Equipment 87.5-107.9 MHz FM sub carrier 800 to 900 MHz Cellular Phone 909.75-921.75 MHz Toll & Parking OBU (Add-on when needed) 1575.42 MHz GPS Receiver 5.850-5.925 GHz Multi-Application OBU (factory orretrofit installation) 1800 to 1900 MHz PCS Phone 2322.5-2345 MHz for XM Satellite Radio Multiple Bands Two-way Radio 76-77 GHz Collision Avoidance Radar Interface Devices (Built-in Display, Annunciator, Microphone, Keypad, etc. connected to the Computer, which is connected to the in-vehicle Data Bus) Not to scale Broady Cash, ARINC

  19. The multi-application OBUs use a 360 deg. horizontal patternfor all applications. Basic Pattern Example 5.850-5.925 GHz Multi-Application OBU (360 deg horizontal pattern) 5.850-5.925 GHz Multi-Application OBU (connected to the IDB) 909.75-921.75 MHz Toll & Parking OBU (360 deg horizontal pattern) Not to scale Broady Cash, ARINC

  20. Enhanced Configuration Example Other ITS Communications Equipment 87.5-107.9 MHz FM sub carrier 1575.42 MHz GPS Receiver 800 to 900 MHz and 1800 to 1900 MHz Cellular Phone Antenna 909.75-921.75 MHz Toll & Parking OBU (Add-on when needed) 5.850-5.925 GHz Multi-Application Antenna (360 deg horizontal pattern) 2322.5-2345 MHz for XM Satellite Radio 5.850-5.925 GHz Multi-Application OBU (factory installation) (connected to the in-vehicle Data Bus) Multiple Bands Two-way Radio Infrared OBU (Add-on when needed for super high data rates) 76-77 GHz Collision Avoidance Radar 1800 to 1900 MHz 2.5/3G PCS Phone (which is connected to the in-vehicle Data Bus) Interface Devices (Built-in Display, Annunciator, Microphone, Keypad, etc. connected to the Computer, which is connected to the in-vehicle Data Bus) Computer (factory installation) (connected to the in-vehicle Data Bus) Not to scale Broady Cash, ARINC

  21. The multi-application OBUs use a 360 deg. horizontal patternfor all applications. Enhanced Pattern Example 5.850-5.925 GHz Multi-Application OBU (connected to the IDB) 5.850-5.925 GHz Multi-Application Antenna (360 deg horizontal pattern) 909.75-921.75 MHz Toll & Parking OBU (360 deg horizontal pattern) Not to scale Broady Cash, ARINC

  22. Emergency Vehicle Configuration Example Other ITS Communications Equipment 5.875-5.885 and 5.915-5.925 GHz Emergency Vehicle Application OBU with a multidirectional antenna mounted on the light bar (connected to the in-vehicle Data Bus) 87.5-107.9 MHz FM sub carrier 800 to 900 MHz Cellular Phone 1575.42 MHz GPS Receiver 909.75-921.75 MHz Toll & Parking OBU (Add-on when needed) 800 to 900 MHz and 1800 to 1900 MHz Cellular Phone Antenna 1800 to 1900 MHz PCS Phone 2322.5-2345 MHz for XM Satellite Radio Multiple Bands Two-way Radio 76-77 GHz Collision Avoidance Radar Interface Devices (Built-in Display, Annunciator, Microphone, Keypad, etc. connected to the Computer, which is connected to the in-vehicle Data Bus) Computer (connected to the in-vehicle Data Bus) Not to scale Broady Cash, ARINC

  23. The emergency vehicle operator can select the emergency warning forward pattern, the rearward pattern, or the 360 degree multiple antenna pattern depending on the requirements of the application being implemented. Emergency Vehicle Configuration Example Emergency Warning Pattern 909.75-921.75 MHz Toll & Parking OBU (360 deg horizontal pattern) 5.875-5.885 and 5.915-5.925 GHz Emergency Vehicle Application OBU with a multidirectional antenna mounted on the light bar (in-vehicle Data Bus) Not to scale Broady Cash, ARINC

  24. CVO On-BoardEquipment 5.850-5.925 GHz Multi-Application Antenna (360 deg horizontal pattern) 909.75-921.75 MHz, Multi-Application OBU (Built-in and connected to the SAE-1708 or 1939 bus) 5.850-5.925 GHz Multi-Application/ Vehicle to Vehicle OBU (installed in the computer) Interface Devices (Built-in Display, Annunciator, Microphone, Keypad, etc. connected to the Computer, which is connected to the SAE-1708 or 1939 bus) Computer (connected to the in-vehicle SAE-1708 or 1939 bus) Broady Cash, ARINC

  25. TRANSIT On-BoardEquipment 5.850-5.925 GHz Multi-Application OBU (360 deg horizontal pattern) (Built-in and connected to the SAE-1708, 1939, or EIA-709 LonWorks interface bus) Interface Devices (Built-in Display, Annunciator, Microphone, Keypad, etc. connected to the Computer, which is connected to the SAE-1708, 1939, or EIA-709 LonWorks interface bus) Broady Cash, ARINC

  26. RAIL On-BoardEquipment 5850-5.925 GHz Multi-Application OBU (360 deg horizontal pattern) (Built-in and connected to an SAE-1708, 1939, or EIA-709 LonWorks interface bus) Interface Devices (Built-in Display, Annunciator, Microphone, Keypad, etc. connected to the Computer, which is connected to an SAE-1708, 1939, or EIA-709 LonWorks interface bus) Broady Cash, ARINC

  27. POSSIBLE COMMUNICATIONCONFIGURATIONS Broady Cash, ARINC

  28. 1 2 3 INDEPENDENT RSU with DIRECTIONAL ROADSIDE ANTENNA Human Machine Interface RSU messages loaded locally OBU /w Antenna Two-way RF RSU /w Antenna OBU /w Antenna Human Machine Interface Broady Cash, ARINC Not to scale

  29. 3 6 8 4 5 7 2 1 ITS Application REMOTE ACCESS RSU with DIRECTIONAL ROADSIDE ANTENNA Traffic Management or Other Center Traffic Management Center Server/ Network Interface OBU Antenna Human Machine Interface In-Vehicle Computer OBU In–Vehicle Network Internet or Private Network Two-way RF RSU Antenna OBU Antenna OBU Equipment Cabinet Human Machine Interface RSU Inside In-Vehicle Computer Broady Cash, ARINC Not to scale

  30. 3 7 5 4 6 8 2 1 ITS Application REMOTE ACCESS RSU with 360 Degree Pattern ROADSIDE ANTENNA Traffic Management Center Traffic Management Center Server/ Network Interface OBU Antenna Human Machine Interface RSU Antenna In-Vehicle Computer OBU Two-way RF Two-way RF In–Vehicle Network Internet or Private Network OBU Antenna OBU Equipment Cabinet Human Machine Interface RSU Inside In-Vehicle Computer Broady Cash, ARINC Not to scale

  31. 8 2 6 4 7 5 1 3 Vehicle Antennas with 360 Degree Patterns OBU Antenna OBU Antenna Human Machine Interface Human Machine Interface In-Vehicle Computer In-Vehicle Computer OBU OBU In–Vehicle Network In–Vehicle Network OBU Antenna OBU Antenna In-Vehicle Computer OBU Human Machine Interface Human Machine Interface In-Vehicle Computer OBU Broady Cash, ARINC Not to scale

  32. URBAN/SUBURBAN APPLICATIONS Broady Cash, ARINC

  33. Traffic Signal- Red Traffic Signal - Green Traffic Signal Traffic Signal TYPICAL INTERSECTION COLLISION ANIMATION FOLLOWS Broady Cash, ARINC

  34. Traffic Signal- Red Traffic Signal - Green ANIMATION Traffic Signal Traffic Signal NO COLLISION AVOIDANCE SYSTEM IN OPERATION Broady Cash, ARINC

  35. EMERG. EMERG. EMERG. EMERG. VEHICLE VEHICLE VEHICLE VEHICLE FRONT REAR RIGHT LEFT EMERGENCY VEHICLE APPROACH WARNING In-Vehicle Displays and Annunciations ~ ~ ~ ~ Emergency Vehicle Approach Warning Communication Zone ~ ~ ANIMATION FOLLOWS Emergency Vehicle up to 1000 m (3281 ft) Traffic Signal Traffic Signal Note 1: The Emergency OBU transmits a warning to ALERTother vehicles that it is coming. OBUs on Control Ch Not to Scale Broady Cash, ARINC

  36. EMERG. EMERG. EMERG. EMERG. VEHICLE VEHICLE VEHICLE VEHICLE FRONT REAR RIGHT LEFT EMERGENCY VEHICLE APPROACH WARNING ANIMATION In-Vehicle Displays and Annunciations ~ ~ ~ ~ Emergency Vehicle Approach Warning Communication Zone ~ ~ Emergency Vehicle up to 1000 m (3281 ft) Traffic Signal Traffic Signal Note 1: The Emergency OBU transmits a warning to ALERTother vehicles that it is coming. OBUs on Control Ch Not to Scale Broady Cash, ARINC

  37. EMERGENCY VEHICLE SIGNAL PREEMPTION Traffic Signal RSU located in the center of the intersection Emergency Vehicle ~ ~ ~ ~ ~ ~ Note 1: OBU Transmitting the Emergency Vehicle Signal Preemption Request on the Intersection Ch RSU on Intersection Ch Traffic Signal OBU on Intersection Ch Traffic Signal up to 1000 m (3281 ft) RSU Horizontal Support Not to Scale Broady Cash, ARINC

  38. EMERGENCY VEHICLE SIGNAL PREEMPTION with APPROACH WARNING ANIMATION RSU located in the center of the intersection Note 1: OBU Transmitting the Emergency Vehicle Signal Preemption Request on the Intersection Ch Note 2: The Emergency OBU transmits a warning to ALERTother vehicles that it is coming on the Control Channel. ~ ~ ~ ~ Emergency Vehicle Approach Warning Communication Zone ~ ~ RSU Horizontal Support Emergency Vehicle up to 1000 m (3281 ft) Traffic Signal RSU on Intersection Ch Traffic Signal OBU on Intersection Ch and Control Ch OBUs on Control Ch Not to Scale Broady Cash, ARINC

  39. EMERG. EMERG. VEHICLE VEHICLE LEFT RIGHT EMERGENCY VEHICLE APPROACH WARNING - INTERSECTION RELAY RSU located in the center of the intersection In-Vehicle Displays and Annunciations Emergency Vehicle Note 1: The Intersection RSU retransmits the Emergency OBU warning to ALERT vehicles approaching on the side streets. ~ ~ ~ ~ ~ ~ Traffic Signal RSUs Retransmitting on the Control Ch OBU Transmitting the Emergency Vehicle Signal Preemption Request on the Intersection Ch OBUs Receiving the Retransmitted Warning on the Control Ch Traffic Signal RSU Horizontal Support up to 1000 m (3281 ft) Not to Scale Broady Cash, ARINC

  40. w/ STOP LIGHT ASSISTANT Traffic Signal- Red Traffic Signal - Green The Central Intersection Communications Subsystem up to 825 ft range Traffic Signal Radio Communication Traffic Signal Intersection Collision Avoidance System Equipment Cabinet Intersection Radio Mobile Radio VEHICLE BASED / INFRASTRUCTURE ASSISTED COLLISION AVOIDANCE Broady Cash, ARINC

  41. Roadside Communications Subsystem Radio B Traffic Signal- Red Traffic Signal - Green INFRASTRUCTURE ASSISTED COLLISION AVOIDANCE Roadside Communications Subsystem Radio C The Vehicle Tracking Subsystem and the Central Intersection Communications Subsystem up to 825 ft range Roadside Communications Subsystem Radio A Traffic Signal Traffic Signal Intersection Collision Avoidance System Equipment Cabinet Intersection Radio Mobile Radio Radar Tracking Roadside Communications Subsystem Radio D Dynamic Message Sign (DMS) Radar System Roadside Radio Radio Communication Broady Cash, ARINC

  42. Roadside Communications Subsystem Radio B Traffic Signal- Red ANIMATION Traffic Signal - Green The Vehicle Tracking Subsystem and the Central Intersection Communications Subsystem Roadside Communications Subsystem Radio C up to 334 ft @ 35 mph Roadside Communications Subsystem Radio A Traffic Signal Traffic Signal Intersection Collision Avoidance System Equipment Cabinet Intersection Radio Mobile Radio Dynamic Message Sign (DMS) Roadside Communications Subsystem Radio D Radar System Roadside Radio Broady Cash, ARINC

  43. COLLISION STOP LEFT 334 ft @ 35 mph Traffic Signal - Green Traffic Signal- Red ANIMATION SCP - Straight Crossing Path 334 ft @ 35 mph Vehicle A Traffic Signal- Red Radar Tracking Traffic Signal- Green Intersection Radio Mobile Radio Radio Communication Dynamic Message Sign (DMS) Vehicle B Vehicle Brake Lights Car being Warned and Responding Radar System Not to Scale Broady Cash, ARINC

  44. COLLISION COLLISION STOP STOP RIGHT LEFT 334 ft @ 35 mph Traffic Signal - Green Traffic Signal- Red ANIMATION SCP - Straight Crossing Path Vehicle B 334 ft @ 35 mph Vehicle A Traffic Signal- Red Car being Warned Radar Tracking Traffic Signal- Green Intersection Radio Mobile Radio Radio Communication Dynamic Message Sign (DMS) Vehicle Brake Lights Car NOT Stopping Radar System Not to Scale Broady Cash, ARINC

  45. COLLISION COLLISION IMMINENT IMMINENT FRONT LEFT up to 100 m (328 ft) IMMINENT COLLISION WARNING In-Vehicle Displays and Annunciations ~ ~ Note 1: The OBU in the vehicle recognizing the threat transmits a WARNING and COLLISION PREPARATION MESSAGE with the location address of the threat vehicle. ~ ~ Note 2: Only the OBU in the threatening vehicle processes the message because only it matches the threat address. ~ ~ Note 3: COLLISION PREPARATION includes seat belt tightening, side air bag deployment, side bumper expansion, etc. Car NOT Stopping Radar Threat Identification Traffic Signal Traffic Signal OBUs on Control Ch Not to Scale Broady Cash, ARINC

  46. COLLISION COLLISION IMMINENT IMMINENT FRONT LEFT IMMINENT COLLISION WARNING ANIMATION In-Vehicle Displays and Annunciations ~ ~ ~ ~ ~ ~ Car NOT Stopping Traffic Signal Traffic Signal OBUs on Control Ch Not to Scale Broady Cash, ARINC

  47. ON-ROAD INFO FUELING and GAS STATION INFO FUELING The Control Channel is used to announce the data transfer application operating on the designated Service Channel RSU on Control Ch 178 RSU on Service Ch 176 OBU on Control Ch 178 OBU on Service Ch 176 RSU on Service Ch 182 RSU on Service Ch 180 Traffic Signal OBU on Service Ch 182 OBU on Service Ch 180 Traffic Signal ~ ~ Multi-App RSU Operates on the Control Ch 178 and Service Ch 176 Street Info fueling Com. Zone ~ ~ up to 90 m (300 ft) ~ ~ Sidewalk Info fueling Com. Zone Data Transfer on Service Ch 180 Data Transfer on Service Ch 182 Gas Pumps ANIMATION FOLLOWS Not to Scale Broady Cash, ARINC

  48. ON-ROAD INFO FUELING and GAS STATION INFO FUELING The Control Channel is used to announce the data transfer application operating on the designated Service Channel RSU on Control Ch 178 RSU on Service Ch 176 OBU on Control Ch 178 OBU on Service Ch 176 RSU on Service Ch 182 RSU on Service Ch 180 Traffic Signal OBU on Service Ch 182 OBU on Service Ch 180 Traffic Signal ~ ~ Multi-App RSU Operates on the Control Ch 178 and Service Ch 176 Street Info fueling Com. Zone ~ ~ up to 90 m (300 ft) ~ ~ Sidewalk Info fueling Com. Zone Data Transfer on Service Ch 180 Data Transfer on Service Ch 182 Gas Pumps ANIMATION Not to Scale Broady Cash, ARINC

  49. PROBE DATA COLLECTION and TRAFFIC INFORMATION The Control Channel is used to announce the Probe Data Collection and Traffic Information applications on Ch 174 RSU on Control Ch 178 RSU on Service Ch 174 OBU on Control Ch 178 OBU on Service Ch 174 Traffic Signal Traffic Signal The Probe Data Collection and Traffic Information applications operate on Ch 174 Street Sidewalk Multi-App RSU Operates on the Control Ch 178 and Service Ch 174 Not to Scale Broady Cash, ARINC

  50. TRANSIT VEHICLE ACCESS, FUELING CONTROL, and DATA TRANSFER (GATE) Transit Vehicle Street Transit Vehicle Egress Control and Out-going Data Transfer Transit Vehicle Access Control and In-coming Data Transfer 27 Mbps Pico Zone Gas Pumps RSUs are located over the center of the in-coming and out-going lanes of the Transit Vehicle Parking Facility. Transit Vehicle Fueling Management RSU Support Structure 50 ft CH 176 Transit Vehicle CH 180 RSU on Channel 174 Pico Zone RSU on Channel 176 Transit Vehicle TRANSIT VEHICLE PARKING FACILITY CH 174 RSU on Channel 180 OBU on Channel 174 Note: Control Channel is used periodically by each RSU to announce the presence of the applications operating on the Service Channels OBU on Channel 176 OBU on Channel 180 Not to Scale Broady Cash, ARINC

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