Transportation Engineering Commons^™

Dynamic Green Split Optimization In Intersection Signal Design For Urban Street Network, Peng Jiao

Open Access Theses

In the past few decades, auto travel demand in the United States has significantly increased, but roadway capacity unfortunately has not expanded as quickly, which has led to severe levels of highway traffic congestion in many areas. In theory, the problem of congestion addressed through demand management and roadway expansion. However, system expansion in urban areas is difficult due to the extremely high cost of land; therefore, maximizing the existing capacity therefore often is considered the most realistic option. In urban areas, most of the traffic congestion and delays typically occur at signalized intersections. This thesis aims to prove the …

Disseminating The Sustainable City Year Program (Scyp) Education Model, Nico Larco, Marc Schlossberg

TREC Final Reports

The University of Oregon has developed a catalytic learning model that simultaneously meets the needs of both the next generation’s transportation workforce and cities looking for innovative and catalytic ways to advance a new era of transportation goals. Named the Sustainable City Year Program (SCYP), the model links local community priorities (as expressed through local plans and city council goals) with courses from a range of disciplines at a nearby university. The UO program engages 500+ multidisciplinary students annually in providing 60,000+ hours of work to city-identified projects using the existing administrative systems of both universities and local communities.

This …

Cable-To-Post Attachments For Use In Non-Proprietary High-Tension Cable Median Barrier – Phase Ii, Scott K. Rosenbaugh, Robert W. Bielenberg, Jessica L. Lingenfelter, Ronald K. Faller, John D. Reid, Karla A. Lechtenberg

Nebraska Department of Transportation: Research Reports

The objective of this study was to reevaluate and improve the existing cable-to-post attachment hardware that is utilized in the non-proprietary cable barrier being developed at MwRSF. The study focused on redesigning the bolted, tabbed bracket (V10) to eliminate the bolt, reduce the number of components per bracket, eliminate the need for tools during installation, and reduce the number of small parts. Three attachment concepts were selected for evaluation through dynamic testing: (1) the key plate attachment; (2) the wire lock pin attachment; and (3) the pinned back attachment. Each attachment prototype was subjected to two vertical and two lateral …

Analysis Of A University Bike-Sharing Program And Lessons Learned, Margaret Mcnamara, Jijo K. Mathew

Purdue Road School

Purdue University initiated a bike-sharing program in August 2015 with 13 locations and 50 bikes. The first 14 weeks of the program saw 15,259 rentals for a total of 22,677 hours. The Purdue sustainable transportation staff partnered with Purdue traffic engineering students to monitor usage trends to identify future investment opportunities and changes to the bike sharing contract. In this session we will present the series of analytics performance measures, management dashboards, and changes initiated as a result of this partnership.

Full Depth Reclamation Of Aviation Pavement, Michael W. Buening

Purdue Road School

Full depth reclamation (FDR) has been utilized multiple times in recent years for airport and roadway pavement rehabilitation. The presentation will review FDR and its use as a treatment for aviation pavements.

Effective Roadway Management Of Septic Systems & Wells, Michael M. Gavelek, Denise H. Wright, Matthew Witt

Purdue Road School

Roadway construction in rural & urban fringe regions impacts properties that utilize septic systems & wells. Due to their fundamental difference from centralized utilities, they can fall through the cracks & create critical path problems & unforeseen costs. Decentralized water & wastewater experts will present engineering fundamentals, construction techniques & costs, regulations & regulatory process, and tips to effectively manage the replacement & protection of septic systems & wells.

Indot Signing - Recent Developments For Attraction Signs, Joseph Bruno

Purdue Road School

Summary of INDOT's policy on attraction signing and tips for addressing attraction signs in design plan development for INDOT road projects. Presented at Purdue University Road School on March 9, 2016.

Fhwa Compliance:Results And Responses For 2015/ 2016, Jay Dumontelle, Eryn Fletcher

Purdue Road School

This presentation discuss the results from the FHWA's 2015 Compliance Assessment Program and explains how these results are being used to direct the FHWA's activities in 2016.

Traffic Ticker, Margaret Mcnamara

Purdue Road School

The Traffic Ticker is a web-based tool developed for use by INDOT to monitor interstate conditions in real-time. Based in crowdsourced probe vehicle data, it is linked to a variety of other tools to provide powerful monitoring and after action review capability. The advantages of this tool are demonstrated in case studies spanning winter operations, interstate crashes, and the I-65 N detour route in August 2015.

Design, Operations, And Safety Of High-Speed Approach Rural Roundabouts, David A. Church, James Tobaben

Purdue Road School

High-speed approach rural roundabouts have been found to reduce overall crashes by 71% and injury crashes by 87% and have become an effective tool used by public agencies to improve safety and capacity at rural intersections. In this presentation we will discuss critical design features for effective implementation, including alignment on approach, deflection, splitter islands, lighting, signing, curbing, diameter, design vehicle, and landscaping. Before-and-after results involving safety, operations, and public acceptance will be highlighted at specific US roundabouts.

Ada And Title Vi: Remaining Eligible For Funding, Cathy Gross

Purdue Road School

Learn how to effectively implement ADA and Title VI nondiscrimination and accessibility requirements in your community to become and remain compliant and eligible for federal funds. In this session we will present changes to the law and requirements effective in 2015 and beyond. You will learn what resources are available to get and keep your community on track and find out how several Indiana communities are making strides in ADA and Title VI compliance.

Americans With Disabilities Act And Curb Ramps, Katherine Smutzer

Purdue Road School

INDOT is in the process of adopting the Public Right of Way Accessibility Guidelines (PROWAG) for pedestrian access route design within public right of way. Updates to the Indiana Design Manual and Standard Drawings will be presented and discussed, including revisions anticipated in 2016 to the curb ramp standard drawings and pedestrian signal placement standards. This presentation will include information from the INDOT standards section and INDOT ADA committee.

Wildcat Bridge - I-65 Artesion Well/Geotechnical/Structural, Anne Rearick, Jeremy Hunter, Silas Nichols, Mir Zaheer

Purdue Road School

In this session we will discuss the emergency design and repair of the I-65 bridge over Wildcat Creek in Tippecanoe County during the summer of 2015 that closed I-65 northbound.

The Lesser Known Side Of Highway Safety, Rick Drumm

Purdue Road School

Most highway professionals are aware of the main concepts of highway safety. But there are many other concepts, odd statistics, and unique countermeasures that are not well publicized and that we might consider brilliant—or silly. As a host of ideas are presented, you will be challenged to consider how to improve highway safety on your roads, and maybe share some of your own ideas.

Storm Damage - Murphy's Law, Dale Sedler, Mark Bailey

Purdue Road School

Examination of a disastrous event that required 4 coinciding occurrences happening that individually would likely have resulted in minor or no damage.

Storm Damage - Floating Culverts, Dale Sedler, Mark Bailey

Purdue Road School

A review of buoyancy issues culverts experience due to blockage. Includes discussion of blockage due to floating debris and issues with multiple culverts. Provides information on characteristics that help to determine if a culvert has "floated."

Good Safety Program: Straight Ahead, Rick Drumm

Purdue Road School

AASHTO and FHWA conducted a joint scan tour in the fall of 2015 to document what makes a good safety program. A wealth of information on safety programs was pulled together in one effort and coalesced in one document. Topics to be presented that were discussed on this seven-state tour include data collection/analysis, funding, systemic safety improvements, types of projects and initiatives, project development and delivery, cooperation with safety partners, and measuring safety.

Storm Damage - Sr-57 June 2008, Dale Sedler, Mark Bailey

Purdue Road School

A review of the impact of the White River leaving its watershed and destroying a box culvert under SR-57 in Greene County, IN. Includes discussion about impact of illegal levee, and photos and discussion on contraction scour.

Moving Beyond Functional Classifications: Street Typologies As A Systemic Approach To Complete Streets, Nick Batta

Purdue Road School

Rain Gardens for Roads: Installation & Maintenance Tips—Rain gardens and bio-swales provide an effective means of addressing water quality and quantity issues along roadways, if properly designed and installed. If not properly installed, they can create flooding, unsafe driving conditions, and ugly eyesores. We will examine how to successfully incorporate rain gardens into roadways, including design and long-term maintenance considerations, and present lessons learned from construction and upkeep of rain gardens in municipal installations.

Indot High Friction Surface Treatment Special Provision, Joseph Bruno

Purdue Road School

INDOT special provision on high friction surface treatments and related background material. Presented at Purdue University Road School on March 8, 2016.