Operations & Preservation

Operations & Preservation

Operations & Preservation topics include: Maintenance & Preservation, Operations & Traffic Management, Security & Emergencies, Asset Management
(@meegoda)

Operations & Preservation

Impact of State Aid on Local Roads

Renovation of local roads should depend primarily on the condition state of roads, and secondarily on traffic volume. However, those two important criteria are ignored by local governments while prioritizing roads for repairing upon receiving the state aid. State leverages local funds to renovate or resurface the roads with pedestrian paths and bike lanes. As a result, roads receiving state aid are only renovated or ...more »

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6 votes
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(@site.admin2)

Operations & Preservation

Performance Measures for Winter Maintenance

In the case of New Jersey and other snow and ice states, established performance measures for winter maintenance operations are important for both internal management and external transparency when reporting performance to the public and elected officials. Through literature review, in-depth interviews with state DOTs and/or a peer exchange with other states that experience snow and ice conditions, NJDOT can identify ...more »

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5 votes
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Operations & Preservation

Improved Load Rating Practices for Historic and Undocumented Bridges

In cases when a bridge cannot be easily rated using simplified analytical procedures or due to a lack of information, transportation agencies will often opt to rate the bridge using field assessment and engineering judgement. Given the potential for unreliable ratings, there is a desire to both minimize the use of this rating practice and to develop a more formal and reliable methodology to guide such ratings when no ...more »

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4 votes
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(@gary.vetro)

Operations & Preservation

Self-Healing Concrete as a Corrosion Preventative on Steel Structures

The universities of Binghamton and Rutgers are studying the use of a fungus to create a self-healing concrete. While the study still has to investigate the effect on key traits such as strength, I believe that the corrosion prevention aspect could be utilized in absence of the resolution of these issues. By coating a steel structure in a couple of inches of self-healing concrete that will continuously heal ...more »

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3 votes
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Operations & Preservation

Quantifying the Effectiveness of Bridge Preservation and Maintenance

Understanding the effectiveness and optimal timing of bridge preservation, maintenance and repair activities are pivotal for bridge asset management. Although extensive resources are dedicated to these activities annually, their impact on the long-term performance of bridges is not well documented and/or understood. One reason for this lack of understanding is the sheer complexity involved. The effectiveness of bridge ...more »

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3 votes
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(@atracy)

Operations & Preservation

Effect of Center Line Rumble Strip Installation on Pavement Longevity

The Federal Highway Administration encourages the use of center line rumble strips as a proven safety countermeasure for reducing head-on collisions and opposite-direction sideswipes. However, concerns have been raised by county engineers in the SJTPO region about the effect of center line rumble strips on pavement longevity. Roadways with center line rumble strips have been observed to deteriorate along the center line, ...more »

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3 votes
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Operations & Preservation

Distributed Fiber Optic Sensors for Innovative Condition Monitoring of Concrete Structures

Monitoring the condition of transportation infrastructure is of great significance to help improve the performance and management of infrastructure through providing timely data that supports scientific decision making. In a reinforced/prestressed concrete structure, concrete cracking and steel corrosion significantly affect the load-carrying capacity and long-term durability. Besides their individual effects, concrete ...more »

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3 votes
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Operations & Preservation

Innovative Scour Condition Monitoring for Bridges in New Jersey

During a flooding, scour monitoring data will enable real-time assessment of the bridges. The assessment will support scientific decision making for the optimum traffic control to ensure the safety of the public, and for the optimum strategy of maintenance, rehabilitation, and replacement of the bridges. Recently, two real-time sensing technologies have shown great promise in scour monitoring. The two technologies are ...more »

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3 votes
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Operations & Preservation

Unmanned Aerial Vehicles for Structural Health Monitoring in Operation and Extreme Events

Unmanned aerial vehicles (UAVs) have shown great potential for health monitoring of civil infrastructure. UAV provides a platform to seamlessly integrate advanced sensing, communication, and machine learning for structural health monitoring. For example, UAV carrying a camera has been used to image damages in bridges, in particular, for the locations where people have limited access, such as the bottom of the bridge deck ...more »

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3 votes
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(@billragozine)

Operations & Preservation

Bump Integrator for NJDOT vehicles

A Bump Integrator, a mechanical device for measuring road roughness, is a response-type roughness meter that is imbedded in a small trailer attached to the back of a vehicle. This is a mechanical instrument that measures the relative displacement of a vehicle's suspension in relation to the body of the vehicle. It is equipped with sensors to monitor the "bumps". If SSP and other applicable NJDOT vehicles were equipped ...more »

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2 votes
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(@brennant)

Operations & Preservation

New Jersey Annual Traffic Mobility Report Using Anonymous Probe VehicleSpeed Data

Located between New York and Philadelphia, New Jersey is a vital component of the national transportation network. New Jersey is currently a member of the I-95 Corridor Coalition. The Coalition is an alliance of transportation agencies, toll authorities, and related organizations, including public safety, from the State of Maine to the State of Florida, with affiliate members in Canada. As part of this group, New Jersey ...more »

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2 votes
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(@haowang)

Operations & Preservation

Improved Decision Making for Effective Winter Maintenance

Weather events such as precipitation, snow, and extreme temperatures reduce roadway capacity and escalate crash risk due to slick pavement. Currently NJDOT uses weather forecast and Road Weather Information System (RWIS) to make decisions on anti-icing and deicing treatments. The maintenance of RWIS stations are costly and only limited stations exist in NJ. However, road surface temperature and condition may vary significantly ...more »

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2 votes
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(@site.admin2)

Operations & Preservation

Equipment Asset Preservation and Protection Techniques

Equipment fleets are subject to a number of factors that can cause premature deterioration, including corrosion, weather damage, environmental exposure, rodent damage, and vandalism. Specifically, for New Jersey with a colder climate, de-icing chemicals further contribute to corrosion and low temperatures affect fluid and battery as well as corrosion from salt water on the coastal area. Maintaining the equipment fleet ...more »

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1 vote
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(@site.admin2)

Operations & Preservation

Innovations in Equipment Management Organizational Approaches

Equipment Management (EM) consists of a number of asset management and program management processes that acquire, oversee, maintain, replace, and dispose of vehicles and equipment. Improving EM is an important goal for NJDOT, since outdated and ineffective EM processes can lead to: recurring breakdowns and costly repair expenses, a backlog of items to be replaced, delays waiting for parts and repairs, poor preventative ...more »

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1 vote
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(@sodonnell)

Operations & Preservation

Incorporating Technology Into New Rail Station and Transit Facility Construction

NJ TRANSIT is advancing an ambitious program to ensure stations and other facilities are maintained in a state of good repair. NJ TRANSIT's Commuter Rail Stations Guidelines and Standards Manual was updated in 2015 to provide a conceptual overview of design goals to professionals who are engaged in planning, designing, rehabilitating, or constructing NJ TRANSIT commuter rail stations. With the continuing introduction ...more »

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1 vote
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