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KLD Portfolios

Visuals can help to depict the types of projects on which KLD can provide expertise.

Choose from the items below to see some images and simulation animattions.

 

Porfolio: Images

 

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(Roll over image above to see magnified area. Use right arrow to increase magnification area)

 

Transportation analysis zones and centroids (trip sources/sinks) in Manhattan study area

An important part of building a microscopic traffic model for a large and/or complex area is establishing the origin-destinations of the traffic, and the routings. In this way, changes to the network are followed by realistic reassignments of traffic to the various streets and links, reflecting expected changes. This map shows the detailed “centroids” (green triangles) used for a microscopic model of Lower Manhattan, so that information from the regional Best Practices Model (BPM) can be incorporated.

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(Roll over image above to see magnified area. Use right arrow to increase magnification area)

 

Maintenance of Roosevelt Island Tramway

The Tramway is an important link between Roosevelt Island and Manhattan.  When significant maintenance is needed on the it, such as cable work, the inbound upper roadway on the Queensboro Bridge is closed for some weekend hours, and some streets are temporarily closed.  KLD developed plans for NYCDOT for the Maintenance and Protection of Traffic (MPT) that involved re-routing traffic to and from the Bridge during these periods, to alleviate the effects of the needed closures.

 


 

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(Roll over image above to see magnified area. Use right arrow to increase magnification area)

 

Maintenance of Roosevelt Island Tramway

The MPT plan for street closures in the weekend in Manhattan in the vicinity of the 59th Street Bridge/Queensboro Bridge

 


 

tramway analysis

 

Maintenance of Roosevelt Island Tramway

Capacity Analysis related to closure

ACDS

 

Overview of the Adaptive Control Decision Support System for NYCDOT

Adaptive control can be used in select locations even in urban grids, if traffic patterns are especially unpredictable due to local land uses or special events. 

KLD has designed an Adaptive Control Decision Support System (ACDSS) for NYCDOT that makes use of a web services interface and existing/enhanced tools for optimization and for simulation & visualization as a high-speed background task in real time.

 

Overview of model created representing Interchange 24 on the New York State Thruway

The placement of different types of toll collection (EZPass, cash, mixed) is an important part of the design process.

KLD has served a number of agencies and authorities with its experience in toll plaza operation and design, and its toll plaza model.

 


 

 

Close up of toll plaza at Interchange 24 on the New York State Thruway

 


 

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3-d views of the roadway and signage as drivers approach the interchange

The placement of signs, as well as their size and message, is an important part of communication with the driver. In many applications, it was important that drivers not get “trapped” into wrong choices. Engineers can use computer visualization to supplement the MUTCD (Manual on Uniform Traffic Control Devices), in assessing the visibility and clarity of signs.

KLD has supported such decision-making, and has the experience to have the signs as seen in the visualization be comparable to that perceived by a multi-tasking driver.

 

CAD drawing of intersection and recommended improvements as part of Traffic Impact Study

Condition diagrams are used to show both the existing details of the street space use (parking, lanes, designations of lanes) and the proposed changes needed to accommodate additional traffic.

The specific case shown is the proposed mitigation plan for additional traffic present during the proposed construction of a nearby power plant.

 


 

traffic impact study

CAD drawing of existing configuration of intersection as part of Traffic Impact Study

Producing condition diagrams with modern CAD tools is a routine but important part of traffic engineering practice.

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(Roll over image above to see magnified area. Use right arrow to increase magnification area)

 

Spatial analysis of accident histories as part of traffic impact study

As part of a traffic impact analysis, it is important to investigate the pattern of accidents in the area, so that safety issues can be taken into account in the development of plans.

 

Side by side comparison of alternatives (shown above and below)

For engineers, elected officials, and the public, it is sometimes very important to see the operation as it would be, "before and after" recommended changes are made. The same sorts of visuals are an important part of the design process undertaken by KLD and other team members.

 

 

Visualization created for public hearing

This application is for the convergence of routes in a downtown suburban area, in Nassau County, NY.

 

Portfolio: Simulation

 

KLD produces remarkably realistic simulations.

These can be critical to the planning of a host of projects in the fields of traffic engineering, emergency planing and accident investigation and analysis.

(Use the controls to view the animation.)


Many agencies now expect “before and after” animation and visualization files to be submitted to them as part of traffic impact and mitigation work, MPT plans, and other projects. In some cases, they specify Synchro/SIMTrafficTM analyses, or expect other models to be used.

KLD has been a master of the use of traffic simulation models, and the associated animation and visualization, for over three decades. When added to our strong background in traffic engineering, these skills insure that a wide range of clients are well served.

(Use the controls to view the animation.)


The Hunts Point Produce Market (HPPM) is a large complex, with several buildings and hundreds of truck berths. The operation was modeled (and calibrated) using ARENA in order to assess various operational improvements, and to recommend design alternatives.

(Use the controls to view the animation.)


Several alternative designs were considered, analyses done, and a recommended design selected. This visual shows the recommended design, with emphasis on the queues that develop but are served by effective traffic control as two facilities converge in the Harrisburg (PA) area.

(Use the controls to view the animation.)


This illustration shows the effects of a traffic incident on local congestion, and the remedy by changing the traffic signal settings to respond to the incident. Both 2D and 3D visuals are shown, so that the analyst has both views available in identifying the extent of the problem as it develops, and the effect of the remedy.

(Use the controls to view the animation.)


The purpose of this 3D visualization is to show the complex movements of bus traffic using the local street system and the ramp system serving a major bus terminal (Port Authority Bus Terminal in NYC, with major linkage to the Lincoln Tunnel). The emphasis is on traffic external to the Bus Terminal.

(Use the controls to view the animation.)


This high-quality and realistic rendering was created for a high-profile public presentation of two design alternatives. Background traffic was shown as white vehicles. In one alternative use, the added traffic is shown in green. For the other alternative use of the site, the added traffic is shown in red. The traffic for both alternatives was developed from basic traffic engineering principles, with a microsimulation used to show the load and impact.

(Use the controls to view the animation.)


It is sometimes very important to see the operation as it would be, “before and after” recommended changes are made. The same sorts of visuals are an important part of the design process undertaken by KLD and other team members.

This application is for the convergence of routes in a downtown suburban area, in Nassau County, NY.

(Use the controls to view the animation.)


Many agencies now expect “before and after” animation and visualization files to be submitted to them as part of traffic impact and mitigation work, MPT plans, and other projects. In some cases, they specify Synchro/SIMTrafficTM analyses, or expect other models to be used.

KLD has been a master of the use of traffic simulation models, and the associated animation and visualization, for over three decades. By adding this to a strong background in traffic engineering, we have ably served a wide range of clients.

(Use the controls to view the animation.)


 

 

 

portfolios

 

Project Profiles

Project Title:
Emergency Response Organization Travel Time Study for Nuclear Power Plants
Service Area: GIS Services
View This Project

Project Title:
Transit Dependent Bus Route Development
Service Area: GIS Services
View This Project

Project Title:
Verrazano Narrows Bridge Toll Plaza Simulation Modeling
Service Area: Traffic Engineering
View This Project

Project Title:
Development of Trip Tables to Support the Development of the Lower Manhattan Simulation Model
Service Area: Traffic Engineering
View This Project

 

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