SunGuide SM Software Development Project Ramp Meter Firmware Discussions August 8, 2006

August 9, 2006Ramp Metering Firmware 2 Purpose

August 9, 2006Ramp Metering Firmware 3 Purpose of Effort Develop a functional replacement for the Ramp Metering firmware from WSDOT Utilize the same protocol as utilized for SunGuide SM Release 2.1: –Implies no changes to the “master” side of the software –Same GUI already reviewed by FDOT Developing to the “known” functionality

August 9, 2006Ramp Metering Firmware 4 Requirements

August 9, 2006Ramp Metering Firmware 5 RM Firmware Requirements The SunGuide system shall provide a ramp metering firmware for controlling traffic flow onto a roadway from an on-ramp. The Ramp Meter controller firmware shall control equipment consisting of standard transportation management hardware equivalent to the Model 170 controller. The Ramp Meter controller firmware shall be developed for the 68HC11 processor. The Ramp Meter controller firmware shall support Model 170 controller keypad, LED display, indicators, communications input and output functionality The Ramp Meter controller shall provide standardized communications that conform to the WSDOT ramp metering protocol as described in "170 Communications Protocol:VAX-170-DOC05".

August 9, 2006Ramp Metering Firmware 6 RM Firmware Requirements: con’t The source for input to the Ramp Meter controller shall be configurable. The Ramp Meter controller shall allow use of a common access keypad for manual access to firmware parameters and controller operation. The Ramp Meter controller shall accept pre-defined configurable firmware parameters. Firmware parameters shall be utilized for data collection and ramp metering algorithms. The Ramp Meter controller shall allow firmware parameters to be downloaded from a central system or manually input from the keypad. The Ramp Meter controller front panel shall provide controller metering and data collection status in a manner consistent with the WsDOT Firmware implementation.

August 9, 2006Ramp Metering Firmware 7 RM Firmware Requirements: con’t The Ramp Meter controller shall provide a manually configurable Clock and calendar function. The Ramp Meter controller shall provide Surveillance functions. The Ramp Meter controller shall provide data collection surveillance services in a local mode. The Ramp Meter controller shall meter traffic flow. The Ramp Meter controller shall meter a configurable number of lanes up to three lanes. The Ramp Meter controller shall operate in a local or central command mode.

August 9, 2006Ramp Metering Firmware 8 RM Firmware Requirements: con’t The Ramp Meter controller local mode shall operate based on local traffic conditions and firmware parameters consistent with the WsDOT implementation. The Ramp Meter controller central command mode shall operate based on algorithms defined by the central system. The Ramp Meter controller metering algorithms shall be defined for local mode consistent with the WsDOT firmware implementation. While in central mode, the Ramp Meter controller shall implement the metering rates sent from the SunGuide software. The Ramp Meter controller shall allow for manual starting, stopping and modifying the metering from central command. The Ramp Meter controller shall meter in local mode when active and disconnected from central command.

August 9, 2006Ramp Metering Firmware 9 Development Approach

August 9, 2006Ramp Metering Firmware 10 RM Development Process Development Segmentation: –3 operational modules –Continuous integration testing between Data/Metering modules –Full integration testing once all modules developed

August 9, 2006Ramp Metering Firmware 11 Development Tools

August 9, 2006Ramp Metering Firmware 12 RM Development Environment Development tools –COSMIC 68XC11 Cross-compiler –SEEHAU In-line Emulator –3 developers

August 9, 2006Ramp Metering Firmware 13 RM Emulation Environment Controllers – Model170E – 2 RM controllers / 1 detector simulator – Loop simulation firmware developed by Bitran

August 9, 2006Ramp Metering Firmware 14 Ramp Meter GUI

August 9, 2006Ramp Metering Firmware 15 RMS Context Menus RMS Main Context Menu Ramp Meter Controller (RMC) Icon Context Menu

August 9, 2006Ramp Metering Firmware 16 RMS Metering Control View Current RMC Data View and Change –Operational Status –Metering Range –Metering Rate –Central Control Mode Access RMC Alarms Send Firmware Parameters to RMC

August 9, 2006Ramp Metering Firmware 17 RMS Central Time of Day Schedules RMC Metering Algorithm to Use Time of Day –Days of week –Start / End times –Selected Algorithm Special Event –Events defined by administrator

August 9, 2006Ramp Metering Firmware 18 RMS Alarms and Reset RMC Alarms Dialog –Displays current alarm conditions from controller RMC Reset Dialog –Choose whether to reset Loops Firmware Communication

August 9, 2006Ramp Metering Firmware 19 RMS Firmware Parameters Allows Detailed Configuration of Device Recommended for Expert Users Only

August 9, 2006Ramp Metering Firmware 20 Questions?