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SESSION 3B: 1.5 PDH CREDITS

PART 1: INNOVATIVE SOLUTIONS FOR COUNTYWIDE TRAFFIC SIGN RETRO-REFLECTIVITY ASSESSMENT

The Suffolk County Department of Public Works identified the need for a countywide evaluation of traffic sign retro-reflectivity along its roadways. In response, GPI partnered with the County to develop an innovative mobile application that leverages commercially available dash-mounted cameras and tablet computers to perform the assessment. This solution enables efficient nighttime visual inspections of traffic signs at regular roadway speeds. This approach significantly reduced costs while allowing the County to identify and replace substandard reflective signage. The system captures critical data, including GPS location, MUTCD codes, panel size, color specifications, and sign images of under-performing signs. Collected data is seamlessly stored within the County’s GIS system, where a custom GIS application streamlines the creation of work orders for sign replacement. This presentation will explore the technology behind the application, including its development, data storage requirements, technical challenges, and generating actionable work orders for signage replacement where necessary.

PRESENTER

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MARK DAY

Mark Day is an accomplished software development professional and the director of application development at GPI. With a strong focus on geospatial data projects, he has been instrumental in leading advanced data collection efforts using cutting-edge mobile platforms and successfully implementing comprehensive GIS-based enterprise asset management systems. Additionally, Mr. Day leads GPI’s Advanced Technology Solutions group and holds the position of technical director for GPI's acclaimed HyRoad and Voyager Software Platforms, where he oversees their strategic development and implementation. With an impressive track record of spearheading over 100 GIS, BIM, software development and asset management projects across the United States, he has consistently delivered innovative solutions to solve real world problems for GPI’s engineering clients.

PART 2: ALL-WAY STOP CONTROL AS A SYSTEMIC INTERSECTION SAFETY IMPROVEMENT

This presentation discusses the implementation of all-way stop control as an effective safety countermeasure for rural intersections, even when the traffic volumes do not meet the thresholds included in the MUTCD. All-way stop control is consistent with a Safe System Approach to reducing highway fatalities and serious injuries as it recognizes that “humans make mistakes” (e.g. failing to yield, impatience, distraction, etc.) and that those mistakes should not result in serious crashes. By requiring all intersection approaches to stop before entering the intersection, safety can be improved for all road users at minimal cost to intersection capacity.

PRESENTER

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WILLIAM R. LAMBERT, PE

Mr. Lambert is the Highway Safety/Active Transportation Administrator (a.k.a. “Highway Safety Czar”) for the New Hampshire Department of Transportation. A graduate of Worcester Polytechnic Institute with nearly 40 years experience in transportation, including 23 years as New Hampshire DOT State Traffic Engineer prior to his current position. Bill has been instrumental in resurrecting the agency’s highway safety program and with shifting the design culture to recognize that highways and streets (and “stroads”) should be safe and accessible for all road users. He has also been a vocal advocate for speed management, working with law enforcement and other stakeholders to promote the department’s “Slow and Steady, It’s not a Race” campaign. He has been active with the American Society of Civil Engineers and ITE and in numerous community service activities.

PART 3: EXPERIENCES IN THE USE OF MINI AND MODULAR ROUNDABOUTS BY HIGHWAY AGENCIES

While full-sized roundabouts are a proven solution for addressing safety and mobility at intersections, they have become increasingly expensive relative to other intersection control types. An overarching theme of NCHRP Domestic Scan 23-01 was to increase the consideration of lower-cost roundabout solutions, such as mini and modular roundabouts. The Scan Team met with nine agencies to discuss their experiences with mini and modular roundabout planning, design, installation, and to gather lessons learned. Among the highlights were that mini roundabouts are increasingly being considered as viable alternatives on higher-speed, more rural roadways. Another important theme from the Scan was the high number of mini roundabout installations near schools—in addition to traffic calming, mini roundabouts can process the sharp peaks of school ingress and egress traffic more efficiently than some other forms of traffic control. In addition, the Scan documented that modular roundabouts are much less common than permanent mini roundabouts, with fewer than 10 known installations in the United States. Modular roundabouts have been installed quickly by a couple agencies at intersections with a large footprint, existing angle crash issues, multiple stop-controlled approach lanes, and traffic volumes well below the capacity of a signalized intersection.

PRESENTER

lambert, william.jpeg

WILLIAM R. LAMBERT, PE

Mr. Lambert is the Highway Safety/Active Transportation Administrator (a.k.a. “Highway Safety Czar”) for the New Hampshire Department of Transportation. A graduate of Worcester Polytechnic Institute with nearly 40 years experience in transportation, including 23 years as New Hampshire DOT State Traffic Engineer prior to his current position. Bill has been instrumental in resurrecting the agency’s highway safety program and with shifting the design culture to recognize that highways and streets (and “stroads”) should be safe and accessible for all road users. He has also been a vocal advocate for speed management, working with law enforcement and other stakeholders to promote the department’s “Slow and Steady, It’s not a Race” campaign. He has been active with the American Society of Civil Engineers and ITE and in numerous community service activities.

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