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What are the skills and tools needed for traffic signal timing and coordination engineers?

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Traffic signal timing and coordination engineers are responsible for designing and optimizing the operation of traffic signals to improve safety, mobility, and efficiency on the road network. They use various skills and tools to analyze traffic data, model traffic scenarios, and implement signal plans. In this article, we will explore some of the key skills and tools that traffic signal timing and coordination engineers need to succeed in their profession.

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1 Data Collection and Analysis

One of the essential skills for traffic signal timing and coordination engineers is the ability to collect and analyze traffic data, such as vehicle volumes, speeds, delays, queues, and crashes. Traffic data can be obtained from various sources, such as traffic sensors, video cameras, drones, GPS devices, and surveys. Traffic signal timing and coordination engineers use traffic data to identify problems, evaluate performance, and calibrate models. They also use statistical and graphical methods to present and interpret traffic data.

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Jaime Rodriguez

Co-Founder at Smart City Signals
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We recommend our City customers to build citywide traffic signal models (PTV Vistro or Synchro) to quickly be able to track Level of Service (LOS) operations as data is collected. Depending on City budgets we recommend annual or semi-annual traffic counts to update count data and reassess traffic signal coordination plans. For our tech savvy customers of ours with interconnected traffic signals we use the loops (or video detection zones) to get daily counts that we can average for peak periods. I'm a fan of using Zero second cycle length plans with adjusted split tables by time-of-day. Use your traffic model to also assess impacts from development projects by tracking future growth vehicle trips.

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2 Traffic Modeling and Simulation

Another important skill for traffic signal timing and coordination engineers is the ability to use traffic modeling and simulation tools to test and compare different signal timing and coordination strategies. Traffic modeling and simulation tools are software applications that can replicate the behavior and interaction of traffic elements, such as vehicles, pedestrians, cyclists, and signals. Traffic signal timing and coordination engineers use traffic modeling and simulation tools to estimate traffic impacts, optimize signal parameters, and assess benefits and trade-offs.

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3 Signal Timing and Coordination Design

The core skill for traffic signal timing and coordination engineers is the ability to design signal timing and coordination plans that meet the objectives and constraints of the project. Signal timing and coordination plans specify the signal settings, such as cycle length, split, offset, and phasing, that determine how traffic signals operate and coordinate with each other. Traffic signal timing and coordination engineers use engineering principles, standards, and guidelines to design signal timing and coordination plans that balance the needs of different modes, users, and locations.

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Grigorii Beliaev

Driving Sustainable Transformation in Motion
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Sometimes it gets complicated to make a proper coordination for an arterial with more than 10 intersections and full of left turns. If there are parts with different speed limitations, it becomes impossible. I would recommed to use the greentrafficsoftware.com, because this tool specializes on coordination and "green wave" planning, tackling the issues, mentioned above. It is highly affordable and web-based, which makes it a "traffic engineering calculator".

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Dallon Ogle, P.E.

Assistant Area Operations Engineer-Maintenance, ALDOT/Strategic Business Consultant at AlphaSights Information Services
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I would also add that traffic signal timing and coordination should include traffic detection technologies as both a constraint and as design/operation.

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4 Signal Control and Communication

A related skill for traffic signal timing and coordination engineers is the ability to use signal control and communication tools to implement and monitor signal timing and coordination plans. Signal control and communication tools are hardware and software devices that enable the communication and control of traffic signals, such as controllers, cabinets, detectors, modems, radios, and servers. Traffic signal timing and coordination engineers use signal control and communication tools to upload, download, modify, and verify signal timing and coordination plans, as well as to troubleshoot and diagnose problems.

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5 Project Management and Coordination

A final skill for traffic signal timing and coordination engineers is the ability to manage and coordinate projects involving multiple stakeholders, tasks, and resources. Traffic signal timing and coordination projects often require the collaboration and coordination of various agencies, consultants, contractors, and public. Traffic signal timing and coordination engineers use project management and coordination tools, such as schedules, budgets, reports, meetings, and emails, to plan, execute, and document projects, as well as to communicate and resolve issues.

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6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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Dallon Ogle, P.E.

Assistant Area Operations Engineer-Maintenance, ALDOT/Strategic Business Consultant at AlphaSights Information Services
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This specialized subdicipline should also include training and experience in the Traffic Monitoring center environment. Understanding federal reporting requirements, non-DOT actors, TIMMS, road weather and other specialized state requirements should be considered as any traffic system will most certainly be monitored. As a part of this core skill set, A traffic engineer might be capable of establishing a Traffic Monitoring Center and finally it's daily operation.

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What are the skills and tools needed for traffic signal timing and coordination engineers?

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1 Data Collection and Analysis

2 Traffic Modeling and Simulation

3 Signal Timing and Coordination Design

4 Signal Control and Communication

5 Project Management and Coordination

6 Here’s what else to consider

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