How did I get here! Transportation Engineering Advances Paul R. Olson, P.E., PTOE FHWA Resource Center Paul.olson@fhwa.dot.gov WSU Civil Grad 1980 WSDOT PNW Region Traffic Engineering WSDOT Assistant Project Engineer Consulting (2 firms) More Education UCB 1994 to 1997 Telecommunications Engineering FHWA Resource Center 2 A couple of highlights Brief History 1984 WSDOT Touch screen GUI for CCTV control and switching 1987 First WSDOT Fiber Optic Project 1994 First wireless CCTV in Fresno 1996 First Major Caltrans Fiber in LA 1997 First Wide area Ethernet based C2C traffic signal interconnect One of the earliest-known traffic signals was a revolving lantern with red and green glass that was installed at an intersection in London in 1868. A police officer operated the unit by turning a lever at its base. The idea was novel, but 3 4 1
. less than a year after its debut, the kerosene-fueled unit exploded, injuring the officer who was operating it. Systematic timing updates not being made on reasonable schedule We had problems then 5 6 Is this good practice? 7 8 2
Doesn t meet 1961 standards! Early Control and Detection: Rotated manually by a policeman 90 degrees to show the indication "STOP" or "GO". Integrated and Fully Actuated! 9 10 In the early days 11 12 3
Decisions Decisions Decisions OH MY! Put your self in the traffic signal controller. Lets make list of decisions you need to make. Lets make another list of the data needed to make them. Focus on the vehicle ABS Brakes? Traction/stability control systems? Intelligent cruise control Navigation Outside Temperature Satellite, RDS or HD Radio OnStar or similar Automatic windshield wipers Proximity sensors i.e. back up warning Did we miss anything? What are we really talking about? 13 14 Other stuff So what are we talking about? How many have the following Cell Phone PDA PC Computer (laptop?) Internet Access CATV Car How do you use them? What do they have in common? Computers and communications: On the road side In vehicles On your person Should they be talking to one another? What conversations might take place? 15 16 4
CREDITCARD 123456789012 VALIDFROMGODTHRU X/X/ X/X/X X/X/XX/X/X KENYAMADA Welcome IC カート Commonality Vehicle Infrastructure Integration (IntelliDrive) Lets connect the items Now what can we make of this? If you were here or there what would you like to know? This is a formal USDOT program It involves Automakers Some other folks The systems May be in vehicles as early as 2009???? MY In the roadside? Can we use technology to make better Decisions? 17 18 All kinds of stuff However! Credit company Post office/bank Distribution center On-board device Security/certification user data authority On-board device transaction records Itemized detail IC card of service use Cargo-tag physical distribution (PD) management system Drive-through shopping On-board device Gas station You have system for convenience Contract data purchased 60 liters of gasoline; it amounts to stores It totals at 5,500 yen. 2,862 yen. IC card Charging settlement system Travel records Entrance information Automated check-in system for a car ferry Toll gate on expressway (ETC system) Barrier information Exit information Contract No. 543 has been The highway toll Parking-lot control system Contract No. 324 confirmed. from XX Interchange is 3,000 yen. Automated gate has been confirmed. operations/vehicle Your car entered at 13:18. guidance Existing Systems old technology Reliance on Contact Closure I/O Limited computing power New standards no one is buying Slow moving proprietary industry Most procurements low bid Very little industry agreement 19 20 5
Typical Cabinet Limitations 21 22 Detection Good Ole Loops 23 24 6
s s s s s s s s s s s s s s s s s s s Stop Line Back of Queue Green Point Detection Point Video Detection Testing What video sees NB Cam3 NB Cam4 NB Cam2 NB Cam1 25 26 Signal Coordination Transit Priority The Green Point is the point where the signal must be green for the vehicle to pass thru the signal. Distance Queue Lenght Stopping or Slowing Distance Varies with approach speed Time 27 28 7
But what else is important? Other Fun Stuff???????? What else can we do with this? Very interesting Video from 1937 http://www.archive.org/details/seeinggr1937 Traffic Signal Timing Manual http://ops.fhwa.dot.gov/arterial_mgmt/tstmanual.htm Mobile Hands On Traffic Signal Timing Training http://www.webs1.uidaho.edu/most/ 29 30 People are Key! 31 8