SCOPE OPEN SOURCE TRAFFIC CONTROL
DEVELOPMENT
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Current Architecture

     Because a government sponsored Advanced Traffic Controller API does not work under Linux, ATI had to develop our own interface to a NEMA TS2 cabinet.

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Optimal System Architecture

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DOT Contract Requirements

     These were our D.O.T. contract requirements. They are kept under configuration control and are stored in MySQL using the Open Source Requirement Management Tool (OSRMT). Each requirement contains the page source in the proposal. Unfortunately, OSRMT is having problems producing reports from MySQL so this is just a screen capture. A bug has been submitted.

SCOPE Development Standards

Ada95 Quality and Style Guide:                   Ada95 Coding Standard
Guidelines for Professional
Programmers, October 1995


ATC API Standard, Version 2.06b                Interface with the Linux based ATC operating system and device drivers


C++ Coding Standards by Herb                 C++ Coding Standard
Sutter and Andrei Alexandrescu


Google's C++ Coding Standard.                Sutter and ALexandrescu was not FREELY available online.


NTCIP                                                     Communication standards and protocols for message passing


UML 2.0                                                 Design Specification

Objectives

     Our original technical objectives for SCOPE can be found here.

Schedule

     
Our original schedule for SCOPE Development can be found here.

Evaluation of Existing Open Source Traffic Control Programs

     During the exploratory phase, we looked at a program from the California Partners for Advanced Transit and Highways (PATH).  A flow graph of its logic can be found here.

     We started our main development by checking if anything out there was useful.  Here's a link to a very detailed report:  The Evaluation

System Requirements

     The original requirements for SCOPE can be found here.

Development Tools

     This is a list of Open Source Development Tools we used to develop SCOPE.
Operating System

     ATI originally used Fedora 14 (Red Hat free) as the development operating environment . The GNOME desktop environment was used with KDE libraries installed to allow us to run both GNOME and KDE graphical applications. Some of our developers used Ubuntu.  I'm currently using MINT.  It doesn't matter what Linux version you use.

Configuration Management

     During Phase I, we used a graphical interface tool called Cerversia. This sits ontop of CVS (Concurrent Versioning System) and runs under the KDE enviornment. After some consideration and research, we decided ATI would use tkCVS as the graphical interface to CVS during formal development.  We've now switched to git.

Requirements Capture

     We installed a tool called Open Source Requirements Management Tool (OSRMT) on our main workstation. We are using it to capture system, software, and contract requirements. It uses MySQL as a database to manage requirements. 

UML Modeling and Design

     A tough choice. During proof-of-concept development we used a tool called Umbrello because it was the only open source tool we found that ran on Linux and generated Ada95 and C++ source code from the object models. There were a lot of issues with it. For prototype development stuck with Umbrello after evaluating OpenAmeos and BoUML. 

Implementation and Testing

     Coding was written using gcc (GNAT for Ada95, g++ for C++, gdb for debugging).  GPS and other open source tools were used for software metric analysis.  We built many cross compilers for different hardware implementations.

Issue Tracking   

This file was used to track issues in SCOPE. It was in OpenOffice Calc Format.

    ISSUES ARE NOW BEING TRACKED ON SOURCEFORGE. PLEASE GO TO PROBLEM REPORTS TO SUBMIT A NEW TICKET OR SEE OUTSTANDING ISSUES.

Interface Design Document  

    SCOPE's Interfaces. Here's a link to the IDD

Presentations

    An overview on ATI's SCOPE work up until March 2011 can be found here.

    Real Time Signal Transition Software for The Advanced Traffic Controller is a PowerPoint presentation written by Dr. Justin Key.  He      presented this at the 18th Annual World ITS Congress in Orlando, Florida.

SOURCE CODE

     SCOPE has been tested several ways. It has been unit tested and integration tested using a Linux based PC platform. It has been tested on a PEEK ATC 1000 using an ATSI NEMA-TS2 virtual interface. It has been tested on a prototype ATI controller using an Intelligent Transportation System (ITS) cabinet.  It has been tested on a Raspberry PI.  Get the source code here and contact us if you have questions.  We're updating the repository to git.

DOT Documents

     SCOPE was funded by the U.S. Department of Transportation.  Three comprehensive reports were produced.  There are here:
     Initial Concept Report (Phase I)
     Prototype Report (Phase II)
     NTCIP Report (Phase IIB)


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