iCAP Update: Greener Transportation


The University of Illinois Urbana-Champaign is well past the halfway point from Illinois Climate Action Plan 2020 to iCAP 2025. It’s time to check in on each of the iCAP chapters to gauge progress, address the challenges our campus faces, and celebrate some achievements. This month, iSEE Communications Intern Gabe Lareau examines the Transportation chapter to see if the university is on the road to fully sustainable transport by 2050. View the full series >>>

 

Bicyclists check in near the Alma Mater on Bike to Work Day 2022. Credit: Mark Herman/iSEE Communications

America’s overuse of the internal combustion engine has resulted in one of the most visual reminders we have of our reliance on fossil fuels: the automobile, with its inescapable “honking, skidding, speeding, sputtering, and backfiring” and “emission of toxic fumes and filthy exhaust-pollution,” as eloquently described in The French Dispatch.

Is it possible to break this addiction? What will transportation of the future look like? Many have offered their fair share of outlandish ideas, like Walt Disney’s beloved monorail, the flying cars in Back to the Future 2, or Jean-Marc Coté’s early 20th century drawing of … a whale-bus?

Whether high-speed rail or high-speed whale, the future of transportation will have to be more sustainable. In 2021, every single mode of transportation in the United States, from Navy aircraft carriers to amusement park go-karts, contributed 1,775 million metric tons of CO2 equivalents to the atmosphere. That makes up 28% of overall U.S. emissions and represents the largest contribution from any one economic sector.

The urgency of this issue, and the important part it will play in getting the University of Illinois to net zero carbon by 2050, is not lost on the Transportation iCAP Topical Team. Since 2020, the team has seen progress on some of its biggest tasks — planning to electrify the campus fleet, which has already significantly reduced emissions due to fewer trips taken in more efficient vehicles; establishing an Electric Vehicle Task Force; and continuing implementation of the 2014 Campus Bike Plan among them.

But because “transportation” is so broad a topic, there are still a few bumps in the road. This mostly involves the copious amounts of emissions generated from air travel. To make that more sustainable, or any other form of transportation for that matter, the university community has three choices available.

First, campus can upgrade its equipment and infrastructure to decrease carbon emissions, like the iCAP objective of developing written plans to electrify 80% of campus’ fleets. Second, individuals can switch to low- or zero-carbon commuting alternatives by choosing to carpool, walk, ride a bicycle, or take mass transit. If neither of the first two “active transportation” options are feasible, then the university must negate the carbon it generates by purchasing responsibly sourced offsets. That’s especially true for air travel, as widespread sustainable aviation is decades off and biking across the country is out of the question save for a strong few.

Campus has had great success fulfilling its Transportation objectives by laying the groundwork for 80% of campus fleets to be electric, drastically reducing staff single-occupancy vehicle trips, and continuing to implement the 2015 Campus Bike Plan. But big challenges remain — in particular, standardizing a campus-wide carbon offset policy to negate emissions from air travel.

To make campus transportation fully sustainable by 2050, the U of I will need to do a combination of all three.

In terms of upgrading equipment, electric vehicles (EVs) have surged in popularity nationwide as well as around the world, for a variety of reasons. Their range has steadily increased, and because they run on lithium-ion battery power they present a lower- or zero-carbon way to get around compared to traditional cars, depending on if the battery was charged by renewable energy.

Facilities & Services, which operates hundreds of trucks and cars, has introduced a few EVs and hybrid vehicles into its carpool; it also has a sustainable fleet plan aimed at reducing fuel usage and vehicles and introducing new technologies.

The iCAP prescribes that, by the end of this year, the university should have “written replacement plans for 80% of campus fleets” and that an Electric Vehicle Task Force should be well underway in exploring all options relating to EVs and charging stations for campus. These two objectives have been among the Transportation Team’s top priorities this past year, according to Chair Sarthak Prasad, Sustainable Transportation Assistant at F&S.

“During Fall 2023, we were mainly focusing on the fleet replacement plan that we had worked on in May,” Prasad said. “Since then, that recommendation was approved.”

In that recommendation are two preliminary but vital steps of establishing what exactly a “fleet” is, then establishing a “point of contact” for each fleet.

Deciding on what constitutes a “fleet” is kind of like determining the difference between a really big puddle and a small lake. Units like F&S or the Division of Intercollegiate Athletics (DIA) have large numbers of vehicles. But “there are departments that have one or two vehicles that are assigned to a certain researcher or a lab group,” Prasad said. Will those few internal combustion engines get a free pass because they’re not part of a larger group of vehicles?

Whatever the verdict, the next step will be asking each department to designate an existing employee to take on the responsibilities of a “fleet administrator.” Fleet administrators will coordinate with F&S to develop replacement plans with more sustainable options, like hybrids or EVs. Once a point of contact is established, “then communication will be much more efficient and coherent,” Prasad said.

Once all of these electric vehicles hit campus, they obviously will need to be charged. Currently, campus has 18 individual charging stations across six locations. Many, many more will be needed once EVs inevitably overtake the university district’s streets. That is why, in 2022, the Electric Vehicle Task Force — operated by the University Parking Department — contracted a third party to conduct an analysis for possible EV infrastructure on campus.

For the rest of the campus community, individuals with the means can invest in an electric car, which may be eligible for a $7,500 federal tax credit and a state credit of up to $4,000. Others who can’t afford an EV can turn to alternative means of sustainable transportation.

This leads us to our second way of mitigating transportation emissions: changing individual habits. According to Prasad, the average commute distance for university faculty and staff is about 7 miles. While that would entail a 30-minute bike ride — perhaps daunting to many commuters — those who live 4 miles or fewer from campus are at an entirely bikeable distance, aided by Champaign County’s mercifully flat topography and the university’s excellent bicycling infrastructure.

An electric car is charged in a campus parking garage. Credit: Gabe Lareau

That infrastructure didn’t become exemplary by simple happenstance. The Transportation Team has followed the recommendations of the 2014 campus bike plan and worked to improve it; an updated draft will be submitted by the end of Spring 2024, according to Prasad. Until then, the U of I renewed its “Silver” status as a Bicycle Friendly University from The League of American Bicyclists in 2023. However, “our goal for the next cycle will be gold,” Prasad said.

If you’re closer to the university than average, walking is always an option that is not only sustainable, but also alleviates stress. Nor should we forget our partners at the Champaign-Urbana Mass Transit District (MTD). The MTD not only has its own climate action plan, MTD2071, but also four hydrogen-fueled, zero-emission buses that multiply the immediate reduction in emissions that comes from using public transit. And don’t forget: Anyone with an I Card can ride the MTD free of charge.

If none of these are an option, whether due to disability or chronically sleeping in, some employees may still be able to cut down on commuting by working a hybrid or fully remote schedule. Nixing the commute is an easy way to reduce emissions and therefore make campus cleaner and greener — a win-win, especially for those who prefer to work in their pajamas.

The options for sustainable commutes — “Bus, Bike, and Hike” as they’re known in the iCAP — are integral to the Transportation Team’s Commuter Program. This initiative, aimed at reducing the number of parked cars on campus by asking commuters to relinquish their parking permits, was launched in 2023 and seeks to have 100 registered members by the end of this year.

According to Prasad, the pilot program saw mixed success, with opportunities for improvement: “What we saw during the pilot was people signing up who don’t have a parking permit. That’s not a bad thing because it’s celebrating those people who ride a bicycle or take the bus or walk to work. But the intent behind this program was to reduce the number of parking passes on campus, which unfortunately did not happen.”

The Commuter Program is an attempt to accelerate a larger trend. The number of faculty, staff, and students who commute to campus by driving alone has steadily decreased for nearly two decades. In 2007, the percentage was in the stratosphere at 74%. In 2011, it dropped to 65%; in 2019, 60%. In 2022, partially due to the effects of the pandemic, campus saw its biggest reduction over the shortest time — 55%. This figure sets campus up to meet its 50% goal by 2025.

Such a radical reduction is due to multiple factors. Since the late 2000s-early 2010s, campus bicycle and walking infrastructure quality has dramatically increased. But simple infrastructure can’t actually make anyone do anything; individual choices have compounded to bring about large reductions in driving on campus, and therefore large reductions in carbon emissions.

The largest of those carbon emissions, air travel, is unfortunately out of individual control. While, of course, no one commutes to campus daily via plane, university-related plane trips are a significant factor in campus’ contribution to global climate change. Air travel is most commonly used in three separate areas: study abroad programs, conference travel, and athletic games — a metric that is surely set to increase, as the Big Ten has now expanded to the West Coast.

The best way to reduce air travel emissions is, obviously, not to travel by air. The COVID-19 pandemic also made teleconferencing, a sustainable alternative, more mainstream. When taking an airplane is absolutely necessary, the only realistic option to travel sustainably is to purchase carbon offsets. Work toward a university-wide system has stalled, putting the iCAP’s goal of a 50% reduction by 2025 in serious jeopardy.

Until then, we will have to rely on individual choice to reduce air travel emissions — a mixed blessing. Mixed because rallying some 50,000 individuals to achieve a common goal is a daunting prospect. But it’s also a blessing because when we reach our targets — as campus is projected to do for total emissions in 2025 — anything becomes possible.

Climate Change and Urbanization: Team Employs New Modeling Framework

Members of the Zhao lab at the American Geophysical Union (AGU) in December 2023. Photo courtesy of Lei Zhao.

With climate change driving temperature increases, water scarcity, and limited access to energy in urban areas, it has become more important than ever to understand the relationships between urban areas and their resources.

Lei Zhao, Assistant Professor of Civil and Environmental Engineering at the University of Illinois, works with a team of engineers and climate scientists to model the dynamics between climate change and urbanization. Their research, which has received seed funding from iSEE, helps inform policymakers and urban planners of potential climate solutions.

The software currently used by scientists to predict climate conditions and model land, ocean, and atmospheric dynamics, called the Earth Systems Modeling framework, may be underrepresenting urban environments. Zhao describes it as a “legacy issue,” in which the happenings in an urban environment are too small to cause any discernible changes in large-scale dynamics that traditional models were designed to capture. Additionally, because of the great heterogeneity of urban environments, specific details are often overlooked.

“Chicago is different from New York City. New York City is different from San Francisco. The textures and forms of those cities are not the same,” Zhao said.

There’s a common misconception about the availability of urban climate data. Urban weather stations are not placed in areas that are truly representative of the city’s environment.

“People might think urban environments are very data-rich, but in terms of climatology or meteorology, they’re not,” Zhao said. “When you walk into the city center, you’ll seldom see a weather station there. It’s typically in the airport or in some park, which doesn’t represent urban environments.”

Placing observational sites in truly urban areas causes logistical issues. In the city center, citizens prefer shopping malls and other recreational buildings over weather stations. So the lack of documentation from city centers causes a gap in research between the urban landscape and observational and modeling processes.

To address this, engineers and climate scientists are researching how to use process-based climate modeling and machine learning/artificial intelligence approaches to produce a simulation of climate dynamics that is representative of real urban landscapes. The new hybrid modeling framework leverages the few models that capture urban dynamics and integrates their fully coupled simulations with a physics-informed machine-learning approach.

Together, they provide global multi-model projections of local urban climates under different climate change scenarios, with an assessment of the associated robustness and uncertainties. With this framework, when public health or climate interventionists want to initiate change, they can use a model that is precise to the city of interest.

It’s an unfortunate reality in urban engineering that sustainability sometimes conflicts with resilience. Zhao warns that researchers must aim to strike a balance between strategies that make efficient use of energy and strategies that make cities more resilient to hazards and extremes.

Thankfully, many urban infrastructure experts have spearheaded efforts to prevent cities from being major sources of greenhouse gases while still prioritizing high-quality infrastructure. Zhao notes that targeting urban areas in particular may be the most effective way toward a sustainable future: “75% of final energy use is from cities. They’re hotspots of emission, even though they’re only 2-3% of the land. If we don’t act on cities, we won’t have a sustainable future.”

This urban hybrid modeling project is highly interdisciplinary, featuring a team of experts from different fields. Collaboration between atmospheric scientists and civil engineers helps bring the urban systems model to a broader scale. The two teams have weekly discussions about their research, some of which have led to other urban-related sustainability and climate pursuits.

“Our team has grown,” Zhao said. “For example, this project has led to a larger grant to explore how the wind and concentration of heat in the cities affects mosquitoes, and then how that affects dengue disease.”

When it comes to current research successes, Zhao highlights his students and postdocs and their work on urban humid heat stress (Joyce Yang), urban climate-energy interactions (Cathy Li), urban green stormwater infrastructure (Laura Gray), and global urban data and modeling development (Bowen Fang, Yifan Cheng, and Yiwen Zhang).

“Some of our students are working on nature-based solutions,” he said. “One of those solutions, green stormwater infrastructure, was designed for water infiltration and reduced flooding, but it has other co-benefits. Those benefits are what we are trying to evaluate.”

A long-term goal of this research is to advance global urban science, and consequently, global sustainability.

“I hope to build an advanced understanding of global science that is both fundamental and solution-oriented,” Zhao said.

The research team hopes that these findings will help inform decision-making policies and enable climate-sensitive urban design and engineering. Although cities are currently notorious for being energy-costly, pathogenic hotspots, accurate urban modeling can help transform them into resilient, sustainable, and livable spaces for generations to come.

— Article by iSEE Communications Intern Anjali Yedavalli

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