Planning for new, shared modes of transit that will rival private vehicles in access and convenience requires a paradigm shift in the planning process. Rather than using traditional methods, we need to capture individual behavior while interacting with the systems in questions. An increasing number of studies show that combining agent-based simulation with activity-based travel demand modeling is a good approach. This approach creates a digital twin of the population of the city, with similar characteristics as their real-world counterparts. These synthetic individuals have activities to perform through the course of the day, and need to make mobility decisions to travel between activity locations. The entire transportation infrastructure of the city is replicated on a virtual platform that simulates real life scenarios. If individual behavior and the governing laws of the digital reality are accurately reproduced, large-scale mobility demand emerges from the bottom-up, reflecting the real-world incidences.
This article was originally published on September 8, 2020.
Update for April 20, 2021:
After the murder of George Floyd we wrote this article as a kind of blueprint, a beginning to a new way of working with equitable resilience in our cities and beyond. Now, as the trial of Derek Chauvin comes to a guilty verdict in Minneapolis and the whole country reflects on the legacy of that verdict, we have to remember another senseless murder – another young Black man, Daunte Wright, at the hands of law enforcement, just miles from the courthouse. Again, Minneapolis is all of us. We have protested, we have voted. We stood up, we spoke out, we have raged about the anti-Black racism. We have seen people come together, we can feel a shift in this country. But there is so much more to do. No equity, no resilience.
-Ron & Stewart
Housing that is affordable to low-income residents is often substandard and suffering from deferred maintenance, exposing residents to poor air quality and high energy bills. This situation can exacerbate asthma and other respiratory health issues, and siphon scarce dollars from higher value items like more nutritious food, health care, or education. Providing safe, decent, affordable, and healthy housing is one way to address historic inequities in community investment. Engaging with affordable housing and other types of community benefit projects is an important first step toward fully integrating equity into the green building process. In creating a framework for going deeper on equity, our new book, the Blueprint for Affordable Housing (Island Press 2020), starts with the Convention on Human Rights and the fundamental right to housing.
Since the Great Recession of 2008, the housing wealth gap has expanded to include not just Black and Brown Americans, but younger White Americans as well. Millennials and Generation Z Whites are now joining their Black and Brown peers in facing untenable housing precarity and blocked access to wealth. With wages stuck at 1980 levels and housing prices at least double (in inflation adjusted terms) what they were 40 years ago, many younger Americans, most with college degrees, are giving up on buying a home and even struggle to rent apartments suitable for raising a family.
What makes it hard for policy people and citizens to accept this truth is that we have not seen this problem in a very long time. Back in the 1920s of course, but not really since then. But this is actually an old problem that has come back to haunt us; a problem first articulated by Adam Smith in the 1700s.
More than ever, urban transit services are in need of sustainable and affordable solutions to better serve all members of our diverse communities, not least among them, those that are traditionally car-dependent. New mobility technologies can be a potential resource for local transit agencies to augment multi-modal connectivity across existing transit infrastructures.
We envision a new decentralized and distributed model that provides multi-modal access through nimble and flexible multi-modal Transit Districts, rather than through traditional, centralized, and often too expensive Multi-modal Transit Hubs. Working in collaboration with existing agencies, new micro-mobility technologies could provide greater and seamless access to existing transit infrastructure, while maximizing the potential of the public realm, creating an experience that many could enjoy beyond just catching the next bus or finding a scooter. So how would we go about it?
Dedicated anti-trafficking actors across the nation are trying to build better systems in big jurisdictions like New York, San Francisco, and Los Angeles, and in smaller but scrappy jurisdictions like Waco, Texas and Boaz, Alabama. They all share the same need, for stronger interconnectedness as an anti-trafficking field, and more collaboration.
The Forging Freedom Portal is a one-stop shop where a police officer planning a victim-centered operation can connect with their law enforcement counterparts, and the right service providers ahead of time, collaborating to make sure they’re planning for the language skills, social services, and legal support that victims may need. The portal is a place where the people who care most about ending human trafficking, who are doing the hard work every day on the ground, can learn from each other and share best practices to raise the collective standard of this work.
Maximizing both the mobility and safety of road users at urban and suburban intersections is of utmost importance to city leaders and citizens today. Trends such as micromobility, connected and automated vehicles, and an explosion of available data, coupled with increasing numbers of bikes and pedestrians on our streets, result in both challenges and opportunities.
The increasing ability to provide intersection connectivity, edge computing and cloud storage, along with growing tool sets, such as Signal Performance Measures (SPM) and advanced video detection, provide new and exciting opportunities to traffic engineers. Possible combinations of Vision Zero intersection solutions, Near-Miss analyses, and the ability to make real-time operating decisions at our intersections can be overwhelming. Still, they must be embraced to ensure public officials are accountable to the traveling public.
I caught up with Joe Bergera – CEO of Iteris – recently and we discussed a cloud-first strategy for cities and the benefits, particularly during the pandemic. Organizations, cities and companies that have replicated some of their business processes in the cloud have navigated the pandemic quite well. We discuss why that is, and what can be done to help other cities during this time.
Perhaps nothing has highlighted the critical need for high-speed connectivity more than the COVID-19 pandemic, which has driven entire communities to live, learn and work online. It has also exposed a rapidly widening digital divide in this country that impacts rural, urban, and suburban communities, each with their own unique needs and challenges.
Many cities are leveraging lessons and actions of the COVID-19 crisis to refocus on and drive ambitious sustainability and resiliency strategies. These cities are implementing a “build back better” strategy that ultimately will benefit some of the most vulnerable groups affected by both climate impacts and COVID-19. These strategies can strengthen building infrastructure, create good jobs for those who need them most, and rapidly accelerate cities’ carbon emissions reduction goals.
The work of better, happier cities cannot be implemented by governments or private organizations alone. Regional governments, businesses, banks, and financial institutions must commit to green stimulus and inclusive recovery. These recovery strategies will prioritize jobs and growing the economy, support health and pollution reduction, enhance energy and climate resilience, and support decarbonization, all while focusing on social equity.
The COVID-19 pandemic underlined the need for fast, intelligent, and sophisticated decision-making in government. Now, as cities, states, regions, and nations look to the future, they are harnessing the power of interactive 3D virtual twins to help them plan, develop, and test strategies to support their recovery and build resilience for meeting future crises.
I spoke recently with Jacques Beltran from Dassault Systemes about how the crisis has been an accelerator for cities and public agencies to implement digitization strategies. He’s an experienced public servant now working with cities to address their data needs. He shares some relevant examples of how cities in Europe were lagging one to two months behind what was really occurring on the ground. I am particularly impressed by their work to build a virtual twin of the city’s concert hall to simulate coughing, masks, and other conditions to plan a safe reopening. They found some very surprising findings. They also worked at a regional scale to predict and visualize viral spread to anticipate hospital capacity a month ahead – a key tool for regional officials. The use of virtual twins are extensive for cities.