By Jason Carr听

Civil engineers often think of school design as an exercise in balancing competing priorities. Safety, traffic flow, site constraints, pedestrian patterns, drainage, sports fields, and a听litany of听regulatory requirements听are all part of the mix. Nowhere is听this听more听true听than in the听exercise听of designing K鈥�12 campuses that can听handle听surges of activity during short, windows of time.听

Unlike commercial or residential developments, a K鈥�12 school experiences its highest traffic volume during two peak periods: the morning drop-off and the afternoon pick-up.听During those periods,听nearly every听group听tends to arrive at once. Coordinating and separating these flows while preventing congestion on public streets becomes the听basis听of the entire site layout.听

Many too often assume that听staggering bell schedules听would solve听the problem. The suggestion听will often be,听鈥淲hy not start first grade at 7:00, second grade at 7:15, third grade at 7:30?鈥� But anyone who has worked within the operational reality of a school district knows this is impractical. Bus听routing, staffing schedules, after-school programs,听and family听logistics听make staggered starts听not听feasible. The result is that engineering solutions听must听develop the solution.听

Traffic Streams听

A modern school campus must simultaneously accommodate several distinct vehicle types, each with its own听set of challenges.听

School bus traffic is predictable and highly concentrated. Dozens of buses often arrive within minutes of one another, requiring dedicated stacking space long enough to prevent听spillover听onto adjacent public roads. Buses also need a clear loop that allows them to pull forward, unload, and exit without reversing.听

Alternatively, staff听at听K-12 campuses听tend to arrive earlier, requiring听reliable, separate parking areas that are not entangled with听the parents鈥� line. This often means听locating听staff parking in a discreet lot that provides direct access while听remaining听isolated from student circulation.听

Accommodating听parents is typically听the most challenging flow to manage, especially in communities听where听driving young children to school is the norm rather than the exception.听Parents听want to avoid听buses, so they require听a completely separate听lane and often a lengthy stacking approach.听

Additionally,听for younger children, many parents听will听park and walk their child to the entrance. This听necessitates听a nearby bank of visitor parking听which is听used intensely for 30 minutes each morning but rarely needed during the rest of the day. Designing enough parking for event nights (performances, assemblies, open houses) while avoiding a sea of underused asphalt is always a听challenge.听

Next, there are delivery vehicles to prepare for.听Schools rely on a steady stream of deliveries听including听food service, technology equipment,听and听trash collection.听These vehicles need access to a dedicated loading zone, preferably on the backside of the building, separated from students and general traffic. Larger trucks also require generous turning听space and听heavy-duty pavement sections to withstand repeated loads.听

Finally, there are the are the critical emergency vehicles.听Life-safety access is non-negotiable. Fire departments听require听clear, unobstructed pathways around the building, reliable turning clearances, and strategic fire lane designations. This typically results in multiple points of vehicular听entry,听and a circulation loop capable of accommodating fire trucks and medical responders.听

Pedestrian Safety听

In many K鈥�12 settings,听a large portion听of students arrive on foot. Engineering for pedestrian safety means more than simply marking crosswalks. It involves predicting human behavior. Students and parents will naturally choose the shortest path, even if听it鈥檚听not the safest or intended one.听

To reduce conflict between vehicles and pedestrians, crossings must be strategically听placed听in locations that feel intuitive and direct. Sidewalks must connect residential routes to the campus logically, minimizing the temptation to听veer from the intended path.听

Heavy Vehicle Considerations听

School sites experience unusual pavement demands due to repeated bus traffic, delivery trucks, and periodic 18-wheelers. Geotechnical engineers typically provide recommendations for pavement sections based on soil conditions,听identifying听which areas can use standard听asphalt,听and which require heavy-duty sections or concrete.听

Bus loops, fire lanes, and service areas often demand significantly thicker structural sections to withstand frequent turning and braking of heavy vehicles. Although these upgrades protect long-term durability, they add substantial cost.听

Athletic Fields听

Beyond traffic and parking, school campuses must also leave room for a variety of outdoor elements.听While generic open fields are straightforward to design, regulated sports facilities introduce a different level of complexity.听

If a district expects a field to host official games,听the required dimensions, clearances, and safety offsets increase. Drainage becomes even more critical. Fields cannot slope significantly along the direction of play, yet many sites are hilly or constrained, requiring substantial grading.听

It’s听common for districts to initially express interest in a full-size regulation field, only to discover during layout exercises that space, grading, and budget limitations听necessitate听scaling back.听听

Stormwater听and听Utilities听

In new developments, schools often rely on master-planned stormwater facilities designed by a separate developer. When these facilities are delayed,听the school project becomes tied to someone else鈥檚 schedule, creating friction and听impacting听opening timelines.听

Similarly, roadway improvements, water and sewer connections, and other utility provisions must all align with construction sequencing. Early coordination with municipalities and developers is essential to avoid last-minute conflicts.听

Master Planning听

From an engineering standpoint, the most critical phase of any school project is the master planning听one.听During this phase, we must听identify听access points, understand jurisdictional constraints, define听parking needs,听ensure听space for听fields, and account for stormwater requirements, just to name a few.听Good master planning requires asking the right questions early听that听outline听all of听these needs.听

When these issues are understood upfront, the resulting design is safer, smoother, and more resilient. When they听aren鈥檛, the project听can devolve into a听challenging mix听of redesigns, compromises, and operational听stress.听

Jason D. Carr is President of S. A. Miro Inc.

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By Douglas Roberts, AIA, LEED AP听

In an era of projects that face delays or increasing challenges around securing funding approvals,听it鈥檚听never been more critical to apply strategic thinking and creative approaches to problem solving听in order to听steer educational projects through to completion. Feasibility studies prove to be a useful tool both internally and externally, delivering relevant data and information to project teams while informing stakeholders at every level of the听why听behind each decision. These essential undertakings provide a deep dive to define a program, evaluate existing facilities, and build public consensus on a project.听听

The importance of a听development鈥檚听relationship with the public cannot be overstated, particularly when it comes to education. These projects are typically publicly funded and听largely depend听on approval by local voters to bring these initiatives to fruition. With the importance of providing value to the community and demonstrating prudent stewardship of financial resources, designers and project managers take on the unique role of educating the community, pulling the curtain back to walk these audiences through the logic behind the development of feasibility options including the educational value, cost implications and schedule impacts. The use of feasibility studies clarifies this important context, evaluating critical components of a project and delivering this information through data-backed decision-making.听

Located in Massachusetts, Tyngsborough Middle School听provides听a compelling example of a successful feasibility study-backed project execution. Developed in tandem with the Town of Tyngsborough and Tyngsborough Public Schools, the study informed the decision-making process for the new school while听facilitating听an informative dialogue with the community.听

Overview of Feasibility Study Process听

In addition to local processes, the project first had to navigate the rigorous requirements of the Massachusetts School Building Authority (MSBA), a quasi-independent government authority that collaborates with local communities to help to elevate delivery of educational services. The organization鈥檚 prescriptive process promotes听equitable听distribution of tax dollars and prioritizes educational outcomes throughout the Commonwealth. MSBA independently evaluates the school district鈥檚 defined听needs of a school听through the educational program. The educational program focuses on the delivery of education which can result in design solutions that range from code upgrades, additions, and renovations to ground-up facilities.听听

Project teams are engaged to conduct feasibility studies that evaluate options for an educational environment that meets the district’s needs and is cost effective, safe,听sustainable听and energy efficient. Using MSBA鈥檚 guidelines to chart a reasonable path forward for the development, the study must be factual, creating context for dialogue without advocating for a single solution. A successful study and听subsequent听project听relies听on the close collaboration of a “three-headed team”: the school district (via its School Building Committee), the owner’s project manager (OPM), and the design team. Additionally, having strong community advocates, like school administrators and building committee chairs, can make听a big difference听in successfully navigating the process and garnering support throughout a community.听

Built in 1967, the original Tyngsborough Middle School building had been renovated but not expanded, raising concerns that ranged from antiquated systems and aging FF&E to space limitations and听impact on听adoption of current instructional models. After consideration of multiple design options from the study, the Town听elected听to pursue a new construction听option听based on its needs.听

Relationship to Public听

The community’s demands, priorities, and feedback are essential throughout the听feasibility听study and project planning.听It鈥檚听not a one-size-fits-all situation; to build trust and support from stakeholders, education projects must be catered to the area. This requires a variety of considerations: is there a focus on sports and recreation, or the arts? Are there certain programs that draw more community participation than others? For Tyngsborough, this meant investing in听a state-of-the-art听softball field and a flexible performance space to support existing, high-value theater programs shared by the middle and high school. The community recognized the benefit of the project through the successful vote approving the project funding.听

These studies are also critical for educating the public on hidden infrastructure needs, such as outdated MEP systems, and building consensus. If voters听don鈥檛听comprehend听demands that听aren鈥檛听visually听apparent, a project could fail, which can result in years-long delayed funding and increased costs. Clear and direct communication is key to relaying these messages; this can be听accomplished听through in-person and digital forums, attending Parent Teacher Organization (PTO) meetings, or even visiting local senior centers for those with limited mobility. Streamlining this dialogue through direct action is the most effective way to keep communities knowledgeable and satisfied, resulting in more positive project outcomes for every stakeholder.听

Conclusion/Outlook听

For Tyngsborough, pursuing a ground-up structure allowed the school to provide the infrastructure and spatial requirements for flexible, project-based learning and co-teaching methodologies. The brand new two-story, 112,784 square foot facility is adaptable for current and future pedagogy, incorporating听state-of-the-art听spaces for STEM/STEAM and performing arts, community access and resources, and sustainability integrations that keep the new school adaptable for generations to come.听

As school districts and organizations like MSBA continue to evaluate needs as learning environments and technology evolves, these feasibility-informed decisions chart a well-rounded path forward for students, educators, and communities. Creating unique education design solutions tailored to a community’s long-term vision and needs, not just its current state, is made possible through this process鈥攅mbracing the future while honoring the present.听听

Douglas Roberts, AIA, LEED AP, is Principal at听听

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By Tracy Richter

One of the most pressing challenges in the world of K-12 education is aging school facilities and infrastructure. Despite an average of over $18 billion annually spent on K-12 school construction over the past 15 years, the average age of main instructional facilities is approaching 50 years nationally and fewer than half of these facilities have undergone significant renovations or replacement since their original construction. Since 2010, a majority of the funding has been directed toward new construction, with budgets prioritizing new facilities over maintaining existing ones, leading to a growing funding gap for necessary repairs.听听

Contrary to traditional thought, the approach to comprehensive facilities planning is often not an architectural solution, but a much deeper dive into what drives the need for improved facilities and infrastructure. This is reinforced by the fact that a majority of K-12 districts prioritize facilities planning only when they are anticipating a request for funding from their communities. However, facilities planning may be more critical when funding is at risk. Outdated, often dilapidated buildings combined with rapidly changing demographic factors and the evolution of educational pedagogy make it increasingly difficult for school districts to meet the needs of the modern student population.听听听

Starting With the 鈥淲hy?鈥�: Focus on Your Educational Mission听

Improving existing infrastructure begins with understanding the desired intent of the school facility, both today and in the future. It is imperative to modernize existing facilities and keep them rooted in the core of education, while creating an experience instead of just a space.听听听

A strategy that planners can emphasize to district leadership is programmatic attraction. Districts should evaluate the programming and amenities available to students at each school. These can include STEM, performing arts, athletics, foreign language immersion, career readiness/workforce development and early college programs. By improving the programmatic offerings, which cater to the user experience and adequately prepare students for college and life after graduation, districts can better attract students to formerly under-enrolled schools. Increasing attendance at these types of schools is often achieved through programmatic choice pathways. Coupling this with demographic analysis such as a live/attend study, which indicates where students live versus where they attend school, can provide valuable insight into why students choose different schools outside their boundaries.听

Understanding the 鈥淕ap鈥�: How Do Districts Get Where They Want to Be?听听

A comprehensive diagnosis of a district鈥檚 facilities is a critical step to understanding the 鈥済ap鈥� between where you are today and where you aspire your facilities to be. Facility assessments should contain two major components: a physical assessment of the component and system condition that make up the bones of the facility, and an educational adequacy assessment that is measured against educational standards of today and in the future. The K-12 planning process begins with an Educational Adequacy Assessment, during which faculty groups identify the essential components for effective learning spaces. A facility walk-through evaluates the presence of these components. Following this, a Facility Condition Assessment is conducted to analyze building conditions and maintenance costs, highlighting the importance of performing the Educational Adequacy Assessment first to avoid cost increases. After all the assessments have been completed, a State of Schools Report is created, providing stakeholders with a comprehensive overview of data including enrollment, utilization and demographics, in easy-to-understand graphs.听

Based on the assessments, planning services professionals develop solutions, such as renovations or new additions, to meet the district’s needs. These options are then presented to the district administration. Then, community meetings are held to gather feedback through surveys. Community input is crucial for refining recommendations and addressing stakeholder concerns. Finally, a 10-year facilities management plan is developed, which outlines service needs, timelines and costs. This plan will guide the district’s current and future initiatives.听

Who Are You Serving?: How Demographic Shifts Affect Infrastructure Decisions听

Demographics are ever-changing, leading to uncertainty among district leadership about how to address aging facilities appropriately. Factors such as declining birth rates, homes not regenerating school-age students and a lack of affordable housing have all led to uncertainty when projecting how many students a district will serve in the future.听听听

According to CDC data, the U.S. birth rate has been steadily declining, with a 2% annual drop since before the COVID crisis. Birth rates are now highest among women aged 30鈥�34 鈥� a shift from 2005, when the peak was 25鈥�29 鈥� while teenage pregnancies have fallen sharply. Together, these trends will continue to impact district enrollment in the years ahead.听听

The housing market has also played a large role in enrollment shifts. The rapid increase in housing costs has meant that the typical empty nester who would choose to downsize to a smaller footprint is not as frequent as it once was. Going to half the house for twice the money and three times the interest rate is not a desirable goal for most.听听听

In many cities across the country, the gentrification of housing driven by the goal of progress and improvement has become the norm. However, the increase in housing costs in urban communities and large metro areas continues to be felt by school-aged families who can no longer afford to live in these areas. This has led to an increase in transience among school-aged families, making them less likely to settle in one district throughout their children鈥檚 years in K-12.听听

Read the full article, including insights on how planning services canhelp school districts with aging facilities, in the Planning & Construction issue of 糖心少女.

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Chillers are arguably a school building’s largest energy draw, but need not be costly and complex to be effective. New and widely accessible innovations in air-cooled scroll chiller designs — ranging from 30 to 240 tons — match performance requirements, budget constraints and maintenance requirements.

Cost of Ownership
Compared to typical screw chillers, air-cooled scroll chillers offer better part load efficiencies at a lower cost. They are also easier to service by in-house staff since the compressor technology is similar to residential equipment, which reduces dependency and costs for outside support.

In addition to these price advantages, some of the newest scroll chillers also produce unprecedented energy efficiencies. Sound pressure ratings as low as 60 dBA (decibel A-weighting) — without any optional acoustic treatment — means these quiet scroll chillers are optimal for noise sensitive environments. Combine this with a design that minimizes initial cost and these new scroll chiller systems provide K-12 schools with the lowest cost of ownership —from installation to replacement.

Particularly important when space is at a premium, scroll chillers offer design flexibility and a range of features. For example, pumps can be factory-installed inside the chiller instead of the mechanical room, eliminating the need to work with a design engineer onsite. A chiller-installed pump saves time and money during installation and preserves space inside the mechanical room.

Simpler mechanical layouts and easier installation also reduce contractor-related fees. For example, contractors can bring scroll chillers online, instead of requiring startup by a manufacturer’s representative. Adding factory-installed options like the variable frequency drive (VFD) pump package to control flow, K-12 school staff eliminate cost and complexity of expensive flow meters typically needed for commissioning.

Other factory-installed options such as the fan VFD control enhance part load efficiency, regardless of the chiller size. Modulating the condenser fan speed, rather than turning it on and off, enables a more stable and efficient operation. This control also reduces energy consumed by the fan motor, reducing energy costs and noise.

Simplified Maintenance
Thanks to today’s equipment design, controls and refrigerants, chiller efficiencies have improved and now operate with tighter operational tolerances. To ensure dependable and efficient operation, maintenance is critical, which can add pressure for facility managers who need to manage a broad set of systems across a school environment. Even more challenging is that training may not be a priority for many K-12 schools; yet the complexity of screw chiller systems requires outside support for ongoing maintenance.

Air-cooled scroll chillers are a different story. Some of the newer scroll chillers use a simple, robust and principled design for a trouble-free operation. With all-aluminum microchannel heat exchanger technology and proven compressor equipment, these scroll chillers require minimal maintenance. In-house staff can better maintain and obtain parts, it easier to ensure the system runs consistently. Many scroll chillers also use environmentally responsible R-410A refrigerant — which has no ozone depletion potential or phase-out schedule — and meet ASHRAE 90.1 2013 and FEMP 2012 standards. Schools gain the double benefit of minimizing a facility’s environmental footprint while lowering annual energy costs.

Service Consultants
K-12 schools can extend the benefits of choosing air-cooled scroll chillers with the expertise of service teams who can match a plan to the school’s budget levels and desire to sustain the HVAC investment. Facility consultants and technicians can customize and deliver upon plans for annual maintenance, help bridge staffing gaps, or assist with capital asset planning and HVAC system replacements and upgrades. The most qualified experts will respond swiftly and quickly, and easily navigate today’s highest energy efficient systems and proprietary HVAC technologies, like the newest designs in scroll chillers.

Eddie Rodriguez is a director of product planning at Daikin Applied. He has a mechanical engineering degree and has worked in the HVAC industry for 22 years.

Robert Landes is a product manager for screw and scroll products and has been with the Daikin Applied chiller group since 2008.

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