Past Research

Pilot Study: A Methodology for Addressing Bicycle / Motor Vehicle Conflict Zones

Posted by nbl42 on June 30, 2014

Sponsor: Northern Arizona University

PI: Edward J. Smaglik

Project Start|End Date: 2013 | 2014

In this project, researchers investigated the impact of using green paint and selected MUTCD signage to highlight bicycle – motor vehicle conflict zones.  The team worked with the City of Flagstaff to identify zones with a high bicycle – motor vehicle conflict.  Green paint was then applied at four locations along with the installation of the corresponding MUTCD sign.  Video data was collected before any improvements, with the… Read more

Development of Intersection Performance Measures for Timing Plan Maintenance Using an Actuated Controller Phase 2

Posted by nbl42 on June 30, 2012

Sponsor: Arizona Department of Transportation (ADOT)

PI: Edward J. Smaglik

Project Start|End Date: 2010 | 2012

In this project, researchers used standard traffic signal equipment and existing infrastructure to design and implement two prototypical devices for developing high-resolution performance measure data at signalized intersections.  The prototype included a hardware module and associated instructions for installation and most existing ADOT signalized intersections as well as a software solution for translating the data collected at the field into common performance measures that could be… Read more

Development of a Permanent Span Wire Specification for ADOT

Posted by nbl42 on

Sponsor: Arizona Department of Transportation (ADOT)

PI: Edward J. Smaglik

Project Start|End Date: 2011| 2012

For this project, the research team at NAU worked with ADOT and independent consultants to develop a span wire specification and standard drawing set for the Traffic Signals and Lighting division of ADOT.  The team research typical intersection geometries, equipment weights, signal head requirements, and other states’ span wire specification from across the country in developing a standard / specification that is unique in that it can… Read more

Travel Time Data Collection Research

Posted by nbl42 on

Sponsor: Flagstaff Metropolitan Planning Organization

PI: Edward J. Smaglik

Project Start|End Date: 2011 | 2012

This project involved an investigation into the development of real-time travel time data within and around the City of Flagstaff during the snowplay season. Snowplay traffic on specific routes causes extreme delays on a number of peak days, and the researchers investigated the feasibility of developing probe data from Bluetooth sensors with the intent of providing this data to the traveling public to assist in their route… Read more

Reduction of Speed in Work Zones using ITS DMS Instant Feedback to Driver: Vehicle Speed versus Traffic Fine

Posted by nbl42 on June 30, 2011

Sponsor: Arizona Department of Transportation (ADOT)

PI: Craig Roberts (Smaglik Co-PI)

Project Start|End Date: 2010 | 2011

Research was conducted using a changeable message sign with radar (CMSR) at one work zone location on a four-lane, divided highway in Arizona.  The CMSR provided feedback to drivers about the amount of their potential traffic fine, which was triggered by the radar captured speed as their vehicles approached the CMSR.  This type of feedback has had only limited study according to the authors’ literature… Read more

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