Research

Collisions between over height vehicles and bridges occur about 1,000 times per year in the United States. Collision damage to bridges can range from minor to catastrophic, potentially requiring repair or replacement of a bridge beam. For prestressed concrete beams, the traditional repair methods are strand splices and F…

The supply chain of soybeans is complex, encompassing multiple production sites and multiple modes of transportation. As a result, multiple factors affect the supply chain including weather, seasonality, price, equipment availability, congestion, modal delay, cargo ownership, and requirements pertaining to sustainability…

This study aims to evaluate the effectiveness of using unmanned aircraft systems (UAS) to inspect, inventory, and monitor interchange assets within New Jersey’s road network. The team will use UAS to collect video and photographic data to do preliminary inspections on multiple components of the interchange, including s…

The main objective of this study was to calibrate the AASHTO pavement temperature and seasonal adjustment models, or to develop new models. The models were based on New Jersey conditions and also will be used in network- and project-level FWD analysis.

For this study, 24 pavement sections were instrumented and a n…

In this project, a prototype knowledge-based expert system (KBES) integrated with a Geographical Information System (GIS) is developed. Geomedia Pro is used as the GIS interface for data entry. A software bridge is also implemented to ensure swift data exchange between Synchro, which is a commercial signal optimization s…

Reinforced and unreinforced elastometric bearing pads have been used for bridges in NJ for about five years. The shape of these bearings is square or rectangular and their orientation is generally in the direction of thermal movements. Although the direction of thermal movement for straight bridges can be reasonably pred…

The New Jersey Department of Transportation (NJDOT) Research Division wanted to develop and implement an interactive CD-ROM as a New Jersey-specific companion manual to the 1993 AASHTO Guide for Design of Pavement Structures. The research team developed a framework for the companion manual that met NJDOT’s requirem…

In September 2000, the New Jersey Turnpike Authority introduced E-ZPass technology along with the first stage of its time of day pricing program. In January 2003, toll levels for each time period and vehicle type were increased as part of the second stage of the NJ Turnpike time of day pricing program. The project had th…

The State of New Jersey is extremely populated and rather small geographically. In order to ensure safety at all of the airports in New Jersey, an airport obstruction identification system must be developed. The New Jersey Department of Transportation (NJDOT) Division of Aeronautics is statutorily obligated to identify a…