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How can traffic engineering be used to promote social equity?

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Traffic engineering is the application of science and technology to plan, design, operate, and manage the movement of people and goods on roads, streets, and highways. It affects the accessibility, mobility, safety, and efficiency of transportation systems, as well as the environmental, social, and economic impacts of transportation. How can traffic engineering be used to promote social equity, which is the fair and just distribution of benefits and burdens among different groups in society?

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1 The concept of social equity in transportation

Social equity in transportation means that all people, regardless of their income, race, ethnicity, gender, age, disability, or location, have equal access to safe, reliable, affordable, and convenient transportation options that meet their diverse needs and preferences. It also means that transportation policies and projects do not disproportionately harm or exclude any group, and that they address the existing and historical disparities and injustices in transportation outcomes.

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Nathan Kautz, P.E.

Senior Transportation Safety Engineer
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We must acknowledge that even if a transportation project is selected through a meritorious, data driven process, prior decisions, sometimes unrelated to transportation, can lend to outcomes that disadvantage certain populations. These outcomes can often be quantified in quality of life, safety, and negative economic experiences. Cheaper land - giving a higher benefit/cost ratio to a project when purchasing right of way - is often traversing through disadvantaged communities. Transporation project can create an impassable rift through the community if multimodal transportation options are not considered, as well as increasing the urban heat island effect and noise.

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Robert Brooks

Experienced Construction Project Manager & Field Supervisor | Expert in Complex Builds, Turnarounds & Project Resilience
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The history of traffic engineering and road and service placement has been one of economic and racial exploitation and segregation. Coupled with zoning laws that seek to limit housing opportunity for minorities, historically, urban planning and traffic distribution has critically impacted property values and housing stocks and values. To reunite the community with its core members we need to delete vehicular traffic on at least 1 in every 3 streets, roads and other public thoroughfares, restructure zoning laws to bring services to a walkable level and proximity within the residential component. At the same time remove tax breaks and incentives that prop up the automobile and petroleum industries and redirect them to potential residents

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Ronald (Ron) C. Smith, PE (NC), Emeritus Engineer (SC)

Retired Professional Engineer ????♂?| Christian ??| Patriot ??????| USC Gamecock ????????| Conservative Republican ??| Stand with Israel ????| MAGA ????|
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I don’t think it was real racial exploitation and segregation, but more of an economic issue. It was cheaper to go through minority communities than go around in urban areas, especially during the construction of the interstate system. It was unfortunate and not the best approach. Today, we recognize this exploitation and try not to impacting those areas disproportionately. I think that segregating those neighborhoods can be reversed with appropriate traffic and transportation projects.

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2 The role of traffic engineering in social equity

Traffic engineering can play a key role in promoting social equity by designing and operating transportation systems that are inclusive, responsive, and accountable to the needs and interests of all users and stakeholders. For example, it can improve the safety and comfort of pedestrians, cyclists, and transit riders in low-income and marginalized communities, enhance connectivity and accessibility of different modes of transportation for those who rely on public transit, walking, or biking, reduce the negative impacts of traffic congestion, noise, and pollution on the health of residents, workers, and visitors in high-traffic areas, support the development and implementation of transportation demand management strategies that encourage more efficient modes of travel such as carpooling or telecommuting, and engage with the public to ensure their voices are heard in the planning and decision-making processes.

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Scott Brody, EIT

Engineer & planner
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Though there have been improvements to the design guides and practitioner attitudes, I find traffic engineering is unfortunately still behind the times in many respects. Accordingly, the best thing an engineer can do may simply be to spoil others when they attempt to dominate with 'expertise.'

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Nathan Kautz, P.E.

Senior Transportation Safety Engineer
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Traffic engineering is essential to any traffic calming (to make the area friendlier to the community and non-vehicular traffic) effort and to properly accommodate alternative modes of travel. Slowing speeds, creating safe and convenient facilities, and even context-based signal timing. We usually remember to add some accommodations, but must remember that those accommodations should also be convenient and easy to use.

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3 The challenges and opportunities of traffic engineering for social equity

Traffic engineering is an important tool for advancing social equity in transportation, but it also presents some challenges and opportunities. Balancing the trade-offs between different modes, users, and objectives of transportation systems is difficult, and adapting to changing needs and expectations of users and stakeholders can be complex. Evaluating and measuring the social equity impacts of transportation policies and projects requires appropriate indicators, methods, and tools that capture the diverse dimensions of social equity. Furthermore, developing ethical principles and standards to guide the professional practice of traffic engineers is essential to ensure their social responsibility and accountability.

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Nathan Kautz, P.E.

Senior Transportation Safety Engineer
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The challenges of traffic engineering for social equity is largely based on traditional measures of effectiveness. When the engineer is looking only at vehicular delay and Level of Service, cars and through traffic are prioritized over the community. Practitioners should be looking at the roadway as a piece of the whole, not the entire whole. They can do this by realizing that the choices on the roadway do not just affect the vehicles on the asphalt, but also have an outside effect on everyone around the roadway as well.

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4 The best practices and examples of traffic engineering for social equity

To overcome the challenges and seize the opportunities presented by traffic engineering, there are several best practices and examples that can be adopted to promote social equity in transportation. This includes complete streets, which are designed to accommodate all users and modes of transportation, as well as vision zero, which is a strategy to eliminate traffic fatalities and serious injuries. Additionally, environmental justice elements and criteria should be incorporated to prevent or reduce the environmental and health burdens on low-income and minority communities. Finally, social impact assessment approaches and models should be adopted to identify, analyze, and evaluate the social equity impacts of transportation policies and projects.

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Karina Burns, P.E.

Technical Co-Founder, The Street Company, P.B.C.; Road Traffic Engineer; Builder
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Engineers and decision makers should be encouraged to travel using modes different from their usual mode. Using public transit and active transportation can help designers understand the needs of non-car users, which can lead to better design decisions.

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Nathan Kautz, P.E.

Senior Transportation Safety Engineer
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Some best practices include: context based design and signal timing, evaluating the surrounding community as users of the roadway instead of only the driving public, incorporating feedback from the community in the design - local design studios are great tools to do this!

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5 The benefits and implications of traffic engineering for social equity

By using traffic engineering to promote social equity in transportation, traffic engineers can create and maintain transportation systems that are not only efficient and effective, but also fair and just. This could result in various benefits and implications for the society, such as improving the mobility and accessibility of all people, especially those who are disadvantaged or underserved by the current transportation system. It could also reduce the environmental and health impacts of transportation, especially those that affect the most vulnerable communities. Additionally, traffic engineering can increase public trust and satisfaction with the transportation system, especially among those who are often marginalized or excluded from the planning and decision-making processes. Lastly, it can help advance the goals and values of sustainable development, which are to meet the needs of the present without compromising future generations.

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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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How can traffic engineering be used to promote social equity?

1

2

3

4

5

6

1 The concept of social equity in transportation

2 The role of traffic engineering in social equity

3 The challenges and opportunities of traffic engineering for social equity

4 The best practices and examples of traffic engineering for social equity

5 The benefits and implications of traffic engineering for social equity

6 Here’s what else to consider

Transportation Planning

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How can traffic engineering be used to promote social equity?

1

2

3

4

5

6

1 The concept of social equity in transportation

2 The role of traffic engineering in social equity

3 The challenges and opportunities of traffic engineering for social equity

4 The best practices and examples of traffic engineering for social equity

5 The benefits and implications of traffic engineering for social equity

6 Here’s what else to consider

Transportation Planning

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