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1、Final ReportInteractive Signals for Able-Bodied andDisabled PedestriansUniversity of IdahoNational Institute for Advanced Transportation TechnologyOctober 5, 2009Prepared ByDocument Owner(s)Project/Organization RoleDr. Richard W. WallProfessor, Department of Electrical andComputer EngineeringDr. Jam
2、es FrenzelAssociate Professor, Department of Electrical and Computer EngineeringProject Closure Report Version ControlVersionDateAuthorChange Description1.09/20/2009R.W. Wall1.19/30/09R.W. WallBudget Details1.210/1/2009J.F. FrenzalEditorial Corrections1.310/4/09T. NobleEditorial CorrectionsNoteBudge
3、t PerformanceBudget CategoryFY08 Adjusted BudgetYear to DateEncumbered/ Projected CostsBalance01-Salaries$44,535.59$1,230.40$-$43,305.1902-Fringes$4,138.00$20.60$4,117.4003-lrregular Help$2,504.95$1,464.36$1,040.5904-Travel$4,133.15$2,214.07$-$1,919.0805-Other Expense$1,267.31$1,194.17$-$73.1406-Cap
4、ital 5K$5,300.00$318.49$-$4,981.5107-Capital Outlay 5K$6,922.45$5,882.94$-$1,039.5107-Capital Outlay 5K$4,105.50$4,105.50$-$-08-Reserve$-$-$-$-09-Overhead$-$-$-$-10-Tuition/Stipends$2,606.00$2,606.00$-$-Total$68,557.91$56,777.91$-$11,780.004.5 Metrics Performance RecommendationsRecommendation 1. Res
5、earch by our team on the remote pedestrian assistant will be suspended at its present state of development.Justifications:a. Inaccurate positioning information: Current GPS infrastructure does not have the required accuracy, availability, or coverage to provide an adequate degree of safety needed fo
6、r pedestrian guidance in hazardous environments.b. Accurate directional information: Current electronic compass technology is susceptible to errors generated by local dynamic environment conditions.c. Insufficient range and availability of communication with the traffic control system: Bluetooth com
7、munications does not have sufficient range to support the necessary communications for real time control. Cell phone technology does not have the required reliability for real time safety-critical control.Advantages:a. Research effort can be focused on developing infrastructure capability.b. Cost of
8、 cell phones will drop as the technology matures.c. The demonstration of need draws in additional researchers to address the current problems.d. New GPS technology is under development in the US and Europe that may soon resolve GPS accuracy issues.Disadvantages:a. Loss of advanced navigational assis
9、tance.Risk: The safety advantages associated with the tracking, orientation and guidance capabilities continue to put low vision pedestrians at risk but no more so than currently exists.Action: New technology has been uncovered and is being investigated. The enabling infrastructure provided by the h
10、ardware platform for AAPS Rev 4 is capable of merging a diverse set of positioning technologies and communications schemes.(For additional information, see httD：/)Recommendation 2. Redesign the accessible pedestrian button based upon a more capable microprocessor.Justifications:a. The processor used
11、 in the first design has insufficient resources: Cypress design utilized all memory resources supporting minimum advanced features.b. Savings in pedestrian button reduces system cost: More robust development tools inherently results in more reliable designs with less development effort.c. Fewer elec
12、tronic devices results in increased product reliability.d. Fewer components reduce manufacturing and fabrication costs.e. Additional system functionality is anticipated when the next version of the MUTCD is published.Advantages:a. The cost of the single high performance processor is less than the co
13、st of the eight electronic devices replaced on the design based on the Cypress programmable system on a chip (PSoC) microprocessor.b. A total system cost savings was possible by using a processor with more integrated resources. The new design results in a 60% reduction in component cost per pedestrian station. This savings has a multiplier of 2 to 16 depending on the intersection design.Disadvantages:a. Extends development time.b. Higher cost for development software.Risk: Increased development time and expense delays product introduction.Action: Second design iteration of the Ad
