Project 5.6 Facilitating the Use of Open Source Software Goal: Introduce and discuss opportunities for open source software use
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1 Project 5.6 Facilitating the Use of Open Source Software Goal: Introduce and discuss opportunities for open source software use May 9, 2012
2 Agenda Welcome and introductions North/West Passage and project background Agency developed open source software Barriers and benefits to open source software An example: IRIS Applicability to North/West Passage states Wrap-up and next steps
3 Presenters Dean Deeter, Athey Creek Consultants Jim Kranig, Minnesota DOT Mike Mah, City of Chandler, Arizona Tomas Guerra, Oz Engineering Vince Garcia, Wyoming DOT Welcome and Introductions
4 Agenda Welcome and introductions North/West Passage and project background Agency developed open source software Barriers and benefits to open source software An example: IRIS Applicability to North/West Passage states Wrap-up and next steps
5 North/West Passage and Project Background North/West Passage Transportation Pooled Fund 5(093) program established in 2003 States from WA to WI along I-90/1-94 Develop effective methods for sharing, coordinating, and integrating traveler information and operational activities across borders States share common challenges Commercial and recreational travel corridor Extreme weather conditions Road closures and transportation management
6 North/West Passage and Project Background Project 5.6 Facilitating the Use of Open Source Software Educate states on the availability Explore potential applications within the corridor More program and project information online at
7 Agenda Welcome and introductions North/West Passage and project background Agency developed open source software Barriers and benefits to open source software An example: IRIS Applicability to North/West Passage states Wrap-up and next steps
8 Agency Developed Open Source Software There is a spectrum of software ownership options Proprietary Software Range of License Options Open Source Software
9 Agency Developed Open Source Software Spectrum of Software Ownership Options Proprietary Software: Circulation for use, but not for modifying / enhancing Includes off the shelf (e.g. MS Word) Includes contractor developed products Proprietary Software Range of License Options Open Source Software
10 Agency Developed Open Source Software Spectrum of Software Ownership Options Range of License Options: May include: License to modify but not redistribute License to allow other contractors to modify if they sign a non-disclosure agreement Joint ownership of software Proprietary Software Range of License Options Open Source Software
11 Agency Developed Open Source Software Spectrum of Software Ownership Options Open Source Software: Freedom to run Freedom to study Freedom to improve Freedom to redistribute Source code circulated with the software Proprietary Software Range of License Options Open Source Software
12 GPL (General Public License) Agency Developed Open Source Software Specific form of open source license Not public domain Copyrighted Copylefted If someone modifies the software and distributes it, they must do so as Open Source GPL Licensed GPL Licensed Software does not need to be distributed at no cost (it can be sold)
13 Agenda Welcome and introductions North/West Passage and project background Agency developed open source software Barriers and benefits to open source software An example: IRIS Applicability to North/West Passage states Wrap-up and next steps
14 Barriers to Open Source Software Agency Developed Open Source Software Deployment and operation requires local configuration and adaptation Could be DOT IT staff Could be a contractor An adequate budget is still needed Agencies unfamiliar with open source software may be uncomfortable with the uncertainties Other thoughts?
15 Benefits to Open Source Software Proprietary software has typically been developed through an investment of one company Software company needs to charge a price to regain their investment and make a profit Once open source software is initiated, the software community contributes to it, typically allowing lower costs of deployment
16 This may results in: Benefits to Open Source Software Cooperative software development / sharing of ideas New modules added by one user that other users may not have thought of Lower costs for initial deployment and ongoing maintenance (not no-cost) Wider pool of software companies familiar with the software, increased competition Other thoughts?
17 Agenda Welcome and introductions North/West Passage and project background Agency developed open source software Barriers and benefits to open source software An example: IRIS Applicability to North/West Passage states Wrap-up and next steps
18 An Example: IRIS Jim Kranig Minnesota DOT Minnesota s decision to release IRIS as open source software
19 An Example: IRIS Mike Mah, PE, PTOE City Transportation Engineer City of Chandler, Arizona Chandler s need for Travel Time/DMS control software
20 Chandler posted travel time information on three arterial dynamic message signs (DMS) Chandler became the first city in the U.S. to post travel times on DMS on arterial roads prior to reaching the freeway Project was put into operation in June 2011 Arterial & Freeway Travel Time Information
21 Background State DOTs typically use loop detectors to measure freeway speeds; this information is converted to a travel time and posted on DMS BUT, speed measurements do not work for arterials due to stop-and-go nature of traffic signals
22 Arterial travel times We use Bluetooth devices carried by drivers and passengers to measure travel times directly
23 Concept of Operation Bluetooth devices can include cell phones, smart phones, tablets, in-car units, etc. Anonymous Wireless Address Matching (AWAM) of Media Access Control (MAC) Addresses are matched at each end. Travel times are derived from the time stamp differential.
24 Hardware / software Devices are installed on signal/street light poles or in signal cabinets (one at each end). Data is brought back to TMC through fiber. Bluetooth devices and AWAM software provided by TPA (Toronto). OZ Engineering systems integration.
25 Chandler Automated travel Time System (CHATTS)
26 Sign Operation Hours of Operation: 6 a.m. to 7 p.m. Mon to Sat In case of incidents, can provide alternating panels displaying both travel time and incident ahead type messages A public survey was prepared on the City s web site to seek public input
27 Do you find the travel time information Helpful? 76% said Yes 16% Strongly Agree 8% 43% Agree Disagree Strongly Disagree 33%
28 Is the travel time information Easy to Understand? 86% said Yes 8% 6% Strongly Agree 44% Agree Disagree Strongly Disagree 42%
29 How Accurate do you find the travel time estimates? 88% Agree 6% 6% 31% Strongly Agree Agree Disagree Strongly Disagree 57%
30 An Example: IRIS Tomas Guerra Director of Development OZ Engineering OZ Engineering s selection and integration of IRIS for Chandler
31 OZ Engineering Regional ITS integration since 2000 Arizona DOT Freeway Management System Freeway Travel Times DMS
32
33 The Challenge Opportunity Freeway travel times available Bluetooth sensors being procured One standalone (old) Skyline DMS Two DMS being procured Short-fuse timeframe (3 months)
34 DMS Communications and Control IRIS Reliable NTCIP communications infrastructure Multi-user access Automated Warning System (AWS) Reputable / responsive owners MnDOT, Caltrans Skyline Vendor Software NTCIP compliant communications Single-user access Vendor-specific OZ Development NTCIP compliant communications Significant effort & time
35 DMS (dynamic message signs) or CMS Ramp meters VDS (vehicle detection sensors) LCS (lane-use control signals) CCTV cameras (pan/tilt/zoom) Video switchers In-road lighting (dynamic striping) Warning Beacons Precipitation Sensors IRIS Devices
36 IRIS Protocols NTCIP class A, B and C (DMS) DMS-XML (DMS) MnDOT 4- and 5-bit (VDS, ramp meters, LCS, beacons, IRL) Wavetronix SS105 and SS125 (VDS) Canoga Traffic Sensing System (VDS) Pelco D (pan/tilt/zoom) A/D "manchester" (pan/tilt/zoom) Vicon (pan/tilt/zoom) AWS (automated warning system) Pelco Video Switcher, Vicon Video Switcher Optical Scientific ORG-815 (precipitation)
37
38 Communications Links
39 DMS
40
41 Monitoring & Control
42 IRIS Benefits Saved us 2 3 MONTHS effort Any competent coding house can implement Not tied to a vendor Reputable / responsive owners MNDOT, Caltrans Disciplined / documented revision process Benefit to Community
43 An Example: IRIS Vince Garcia Wyoming DOT Wyoming s assessment of IRIS
44 Agenda Welcome and introductions North/West Passage and project background Agency developed open source software Barriers and benefits to open source software An example: IRIS Applicability to North/West Passage states Wrap-up and next steps
45 Applicability to North/West Passage States Round robin on states impressions Any further thoughts on barriers? Benefits? Discuss additional support for the states Should there be further discussions or information prepared about states using IRIS? Should there be additional research on other open source software? For what uses traffic management, transit operations, maintenance operations or others? Is there a need for more guidance on how to approach open source software as an option?
46 Wrap-Up and Next Steps Webinar recording and presentation will be available online at
47 Contacts Jim Kranig Minnesota DOT Mike Mah, PE, PTOE City of Chandler Tomas Guerra OZ Engineering Vince Garcia Wyoming DOT Dean Deeter Athey Creek Consultants
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