7th Edition (2018): Geometric Design of Highways & Streets

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7th Edition (2018): Geometric Design of Highways & Streets

April 29, 2026
mike@standardsmichigan.com

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Michigan State University

The American Association of State Highway and Transportation Officials is a standards setting body which publishes specifications, test protocols, and guidelines that are used in highway design and construction throughout the United States.  Despite its name, the association represents not only highways but air, rail, water, and public transportation as well.   Its technical committees are responsible for route numbering recommendations.

Although AASHTO sets transportation standards and policy for the United States as a whole, AASHTO is not an agency of the federal government; rather it is an organization of the states themselves. Policies of AASHTO are not federal laws or policies, but rather are ways to coordinate state laws and policies in the field of transportation.

One of its consensus products — the so-called “Green Book” — is heavily referenced in campus design guidelines and construction contracts because most education communities exist within municipal infrastructure.   Power, water supply, sewers to schools and campuses large and small all tend to follow transportation pathways.  The Green Book is revised periodically, the 2018 Edition the most recent.

SUMMARY OF KEY REVISIONS AND UPDATES

We do not advocate in this product at the moment but follow the movement in concepts relevant to education communities; notably the recent reorganization that emphasizes transportation of people, rather than focusing primarily on moving vehicles.  A new chapter discusses multimodal level of service and puts greater emphasis on lower-speed, walkable, urban zones in which new mobility technologies are emerging (such as micro-scooters on campuses)

We maintain the AASHTO catalog on our Pathways, Zoning and Mobility colloquia.  See our CALENDAR for the next online meeting, open to everyone.

Land Measurement

EXTERIOR SIGNAGE, GRAPHICS & WAYFINDING STANDARDS

April 29, 2026
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CAMPUS PLANNING & LANDSCAPE ARCHITECTURE | December 2024 Revision

 

University of Wisconsin | Dane County

 

American universities are plagued by excessive, cluttered signage — “oversigning” — that creates visual chaos and an unwelcoming aesthetic. This is a direct result of strong social control tendencies in modern campus culture and bureaucracy.

Key causes:

  • Risk aversion & liability: Administrators flood spaces with warning signs, rules, accessibility notices, and compliance statements to minimize lawsuits.
  • Administrative bloat: Expanding offices (DEI, compliance, student life, bias teams) create endless new policies that each demand signage.
  • Behavioral control: Signage increasingly prescribes speech, pronouns, microaggression warnings, approved behaviors, and ideological signals.
  • Bureaucratic inertia: Poor coordination between departments leads to overlapping, redundant, and rarely removed signs.

The outcome is visual overload: too many fonts, colors, rules, and directives. While signage standards try to impose order, the underlying incentives of safetyism, compliance, and norm enforcement continually push toward more signs, not fewer.

Wisconsin

 

 

The University Campus As A Designed Work and an Artefact of Cultural Heritage

April 29, 2026
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The University Campus in the United States—As a Designed Work to Produce Knowledge; and as an Artefact of Cultural Heritage

Paul Hardin Kapp
School of Architecture, University of Illinois at Urbana-Champaign, Illinois, United States

 

ABSTRACT: The university campus in the United States is a unique architectural and landscape architecture typology. Nothing like it existed until Harvard University was established in 1638. Invented during in the 17th century by the American colonists and later developed during the American Industrial Revolution, the American campus is a community devoted to teaching and generating knowledge. It can be urban, suburban, and/or rural in form and its planning directly correlates with a university’s research mission and the pedagogy of the American university system. Its buildings and landscapes are embedded with iconography, which the founding builders used to convey their values to future generations.

This paper presents the history of how this designed work first emerged in American society and then evolved in ways that responded to changes that occurred in America. At the end of the 20th century, universities conserved parts of them as cultural heritage monuments. Originally, the university campus was built to disseminate a classical education, but later, the campus was built for technical and agricultural education. By the beginning of the 20th century, professional education and sport changed its architecture and landscape. The paper briely discusses that while it has inspired how universities are built to teach and generate knowledge throughout the world. It concludes by reairming its value to cultural heritage and that it should be conserved.

Illinois

International Zoning Code

April 29, 2026
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2025 Group B Proposed Changes to IZC | Complete Monograph for Changes to I-Codes (2630 pages)

National Association of County Engineers

The purpose of the code is to establish minimum requirements to provide a reasonable level of health, safety, property protection and welfare by controlling the design, location, use or occupancy of all buildings and structures through the regulated and orderly development of land and land uses within this jurisdiction.

CLICK IMAGE

Municipalities usually have specific land use or zoning considerations to accommodate the unique needs and characteristics of college towns:

  1. Mixed-Use Zoning: Cities with colleges and universities often employ mixed-use zoning strategies to encourage a vibrant and diverse urban environment. This zoning approach allows for a combination of residential, commercial, and institutional uses within the same area, fostering a sense of community and facilitating interactions between students, faculty, and residents.
  2. Height and Density Restrictions: Due to the presence of educational institutions, cities may have specific regulations on building height and density to ensure compatibility with the surrounding neighborhoods and maintain the character of the area. These restrictions help balance the need for development with the preservation of the existing urban fabric.
  3. Student Housing: Cities with colleges and universities may have regulations or guidelines for student housing to ensure an adequate supply of affordable and safe accommodations for students. This can
    include requirements for minimum bedroom sizes, occupancy limits, and proximity to campus.
  4. Parking and Transportation: Given the concentration of students, faculty, and staff, parking and transportation considerations are crucial. Cities may require educational institutions to provide parking facilities or implement transportation demand management strategies, such as promoting public transit use, cycling infrastructure, and pedestrian-friendly designs.
  5. Community Engagement: Some cities encourage colleges and universities to engage with the local community through formalized agreements or community benefit plans. These may include commitments to support local businesses, contribute to neighborhood improvement projects, or provide educational and cultural resources to residents.

This is a relatively new title in the International Code Council catalog; revised every three years in the Group B tranche of titles.  Search on character strings such as “zoning” in the link below reveals the ideas that ran through the current revision:

Complete Monograph: 2022 Proposed Changes to Group B I-Codes (1971 pages)

We maintain it on our periodic I-Codes colloquia, open to everyone.  Proposals for the 2026 revision will be received until January 10, 2025.

2024/2025/2026 ICC CODE DEVELOPMENT SCHEDULE

We maintain it on our periodic I-Codes colloquia, open to everyone with the login credentials at the upper right of our home page.

The City Rises (La città che sale) | 1910 Umberto Boccioni


Related:

“What Happens When Data Centers Come to Town”

Signs, Signs, Signs

  1. Reed v. Town of Gilbert (2015): This Supreme Court case involved a challenge to the town of Gilbert, Arizona’s sign code, which regulated the size, location, and duration of signs based on their content. The court held that the sign code was a content-based restriction on speech and therefore subject to strict scrutiny.
  2. City of Ladue v. Gilleo (1994): In this Supreme Court case, the court struck down a municipal ordinance that banned the display of signs on residential property, except for signs that fell within specific exemptions. The court held that the ban was an unconstitutional restriction on the freedom of speech.
  3. Metromedia, Inc. v. San Diego (1981): This Supreme Court case involved a challenge to a San Diego ordinance that banned off-premises advertising signs while allowing on-premises signs. The court held that the ordinance was an unconstitutional restriction on free speech, as it discriminated against certain types of speech.
  4. City of Ladue v. Center for the Study of Responsive Law, Inc. (1980): In this Supreme Court case, the court upheld a municipal ordinance that prohibited the display of signs on public property, but only if the signs were posted for longer than 10 days. The court held that the ordinance was a valid time, place, and manner restriction on speech.
  5. City of Boerne v. Flores (1997): This Supreme Court case involved a challenge to a municipal sign code that regulated the size, location, and content of signs in the city. The court held that the sign code violated the Religious Freedom Restoration Act, as it burdened the exercise of religion without a compelling government interest.

 

Wayfinding

April 29, 2026
mike@standardsmichigan.com

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Modelling and Simulation Wayfinding in Unfamiliar Campus Environment

Designing digital signage for better wayfinding performance: New visitors’ navigating campus of university

Wayfinding Behavior Detection by Smartphone

Human Behavior During Emergency Evacuation: Cell Transmission Model

Almawhere 2.0: a pervasive system to facilitate indoor wayfinding

Managing egress of crowd during infrastructure disruption

A Fuzzy-Theory-Based Cellular Automata Model for Pedestrian Evacuation From a Multiple-Exit Room

Emergency exit sign detection system for visually impaired people

Evacuating Routes in Indoor-Fire Scenarios with Selection of Safe Exits on Known and Unknown Buildings Using Machine Learning

Exits choice based on cellular automaton model for pedestrians’ evacuation

Computer aided architectural design: Wayfinding complexity analysis

Using space syntax to understand knowledge acquisition and wayfinding in indoor environments

Wayfinding by auditory cues in virtual environments

Computer Vision Method in Means of Egress Obstruction Detection

Map Displays And Landmark Effects On Wayfinding In Unfamiliar Environments

Informing the design of an automated wayfinding system for individuals with cognitive impairments

Virtual Reality to Study Pedestrian Wayfinding: Motivations and an Experiment on Usability

AR-enabled wayfinding kiosk

Research on the terrain cognition in small-scale environment

A comparison study of stationary and mobile eye tracking on EXITs design in a wayfinding system

CityGuide: A Seamless Indoor-Outdoor Wayfinding System for People With Vision Impairments

Poster: Evaluation of Wayfinding Aid Techniques in Multi-Level Virtual Environments

Automatic Optimization of Wayfinding Design

Implementing game artificial intelligence to decision making of agents in emergency egress

Navigating MazeMap: Indoor human mobility, spatio-logical ties and future potential

Energy conservation from retrofit ‘exit‘ sign in public premises

 

British High Schoolers Try American Fried Chicken, Biscuits & Sausage Gravy

April 28, 2026
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Biscuits and sausage gravy is firmly rooted in Southern American cuisine, which has a rich history influenced by African, Native American, European, and other culinary traditions. The combination of biscuits and sausage gravy reflects the availability of ingredients in the South, where biscuits (similar to a type of British scone) and pork products were common.

The concept of biscuits, similar to what Americans call biscuits, has British origins. Early settlers brought this baking technique with them to the American colonies. However, the American biscuit evolved over time to become lighter and fluffier compared to the denser British biscuit.

Kitchens 300

American Highschoolers try REAL British food for the first time!

Power-Limited Circuits

April 28, 2026
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Today at the usual hour we review best practice literature for the design, construction and operation of Power-Limited Circuits in healthcare facilities.  With our previous tenure on Code Panel 15 of the National Electrical Code (which covers healthcare facilities, primarily) and our recent appointment by IEEE to Code Panel 3 (which covers power limited circuits in all occupancy classes) we set ourselves up to respond to the proposals that will shape the 2029 NEC.   Use the login credentials at the upper right of our home page.

vbvbvbvbvb

If one imagines that three-phase hospital power distribution systems as “arteries” then power limited circuits can be imagined as the “capillaries” that drive hundreds of end use clinical equipment and devices. The analogy captures the hierarchical, physiological structure of hospital electrical systems—much like the human circulatory system—where power flows from high-capacity trunks to precision, low-risk endpoints.


Three-Phase Systems: The Arteries and Veins

Three-phase hospital power distribution systems function as the arteries and veins: they are the robust, high-volume “vascular” network. Incoming utility power (or on-site generators) arrives as three-phase medium voltage, stepped down through transformers and switchgear into the Essential Electrical System (EES). This backbone—normal power, life-safety, critical, and equipment branches—delivers bulk kilowatts across the facility to major loads: HVAC, lighting, elevators, imaging suites, and operating-room receptacles. Like arteries, these feeders carry large currents over long distances with minimal loss; like veins, they return current safely while maintaining redundancy and selective coordination to keep the “body” (hospital) alive during outages.

Power-Limited Circuits: The Capillaries

Power-limited circuits (NEC Article 725/724 Class 2 and Class 3) are the capillaries. They are the countless, tiny, energy-restricted final branches that directly “perfuse” end-use clinical devices. These circuits are deliberately power-limited—typically ≤30 V and ≤100 VA—to prevent fire, shock, or interference in patient-care spaces. They supply nurse-call systems, bedside monitors, infusion-pump controls, alarm signaling, data links, and low-voltage sensors. Just as capillaries exchange oxygen and nutrients cell-by-cell without flooding tissue, power-limited circuits deliver only the precise, safe wattage needed by sensitive electronics while isolating them from the high-energy main distribution. Their thin insulation, separation rules, and inherent current-limiting transformers mirror the delicate walls of capillaries.

The comparison illuminates why hospitals cannot rely solely on heavy three-phase feeders: without these microscopic “capillaries,” clinical devices would either lack power or be exposed to dangerous fault energies. The analogy shows how the entire system maintains life—bulk transport for infrastructure, micro-delivery for patient care—while enforcing safety through progressive limitation. In essence, the capillaries make the circulatory system functional at the point of use.

Bulletin Board

April 28, 2026
mike@standardsmichigan.com
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NIST | USPTO | ANSI | IEEE | ICC | ASTM | ASHRAE | UL | TIA | ASME | ASCE | AGA

Michigan Standards Developers : NSF | ACI | NETA | ASABE | HL7 | RIA | JCSEE | BIFMA | PJRFSI | SAE

Global: SA | BSA | NSAI | CSA | CEN & CENELEC | ISO & IEC*


 

APPA was founded at the University of Michigan| See our ABOUT

 

 


* ISO and IEC have opted out of the X-social media platforms.  FYI: X is 13 times the size of BlueSky in terms of scale and reach.

2029 National Electrical Code Panel 3

April 28, 2026
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Electrical Safety Catalog

2029 Revision Calendar

At the request of IEEE Joint IAS/PES Standards Michigan, Mike Anthony moved to CMP-3 from CMP-15.

Articles Under CMP 3

  • Article 300 — General Requirements for Wiring Methods and Materials
  • Article 335 — Instrumentation Tray Cable (in some references for the 2029 cycle)
  • Article 590 — Temporary Installations (being relocated/renumbered in the 2026 cycle, e.g., potentially to Article 140 in Chapter 1, as temporary wiring is not treated as a special occupancy)
  • Article 720 — Limited-Energy System Installations (new/general article covering wiring methods for limited-energy systems)
  • Article 721 — Limited-Energy Power Sources
  • Article 722 — Limited-Energy Cable (covers cables for power-limited, fault-managed, etc.)
  • Article 723 — Raceways, Cable Routing Assemblies, and Cable Trays for Limited-Energy Systems (newly created in the 2026 cycle)
  • Article 725 — Class 2 and Class 3 Remote-Control, Signaling, and Power-Limited Circuits
  • Article 726 — Class 4 Fault-Managed Power Circuits and Equipment
  • Article 727 — Instrumentation Tray Cable
  • Article 728 — Fire-Resistive Cable Systems
  • Article 760 — Fire Alarm Systems (power-limited and non-power-limited portions)

CMP 3 also handles associated content in: Chapter 9 — Tables, including Tables 11(A) & (B) and Tables 12(A) & (B) (related to conductor properties and other supporting tables for the above topics).


  • Notes on Changes and Scope
    CMP 3 focuses on general wiring rules, cable types, raceways/trays for low-energy applications, and signaling/communications-related wiring (distinct from higher-power utilization equipment or special occupancies handled by other panels).
  • In the 2026 NEC cycle, there has been significant reorganization of Chapter 7 to consolidate limited-energy systems under articles like 720–726 (and related ones), moving away from older structures. This includes new articles for raceways/cable trays specific to limited-energy systems and adjustments to scopes for clarity.
  • Article 206 (Non-Power-Limited Remote-Control and Signaling Circuits) appears in some 2026-related references as newly designated or relocated material handled in this area.
    Temporary installations (Article 590) are transitioning out of “special” categories in restructuring efforts.

During today’s sessions of the IEEE E&H Committee and our own we will prepare draft proposals relevant to the safety and sustainability agenda of the USA education facility industry.  Use the login credentials at the upper right of our home page.

 

Brown University Electrical Design Criteria | Information Technology Resources Policy


Posted December 20, 2025

The University of Michigan has supported the voice of the United States education facility industry since 1993 — the second longest tenure of any voice in the United States.  That voice has survived several organizational changes but remains intact and will continue its Safer-Simpler-Lower Cost-Longer Lasting priorities on Code Panel 3 in the 2029 Edition.

Today, during our customary “Open Door” teleconference we will examine the technical concepts under the purview of Code Panel 3; among them:

Article 206 Signaling Circuits

Article 300 General Requirements for Wiring Methods and Materials

Article 335 Instrumentation Tray Cable

Article 590 Temporary Installations

Chapter 7 Large sections of limited energy cabling for signaling and information technology

Chapter 9 Conductor Properties Tables 11A & B, Tables 12A&B

Public Input on the 2029 Edition will be received until April 9, 2026.

Related:
  • Since the lifespan of educational buildings make the building core and shell susceptible to multiple changes not typically associated with commercial buildings, additional pathways should be placed in areas where the core and shell components of the facility are likely to re-main for extended periods of time
  • It is recommended that all areas of an educational building have wireless coverage unless prohibited

Hegemon Fairfield County Connecticut

April 28, 2026
mike@standardsmichigan.com
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Hubbell Corporation, a leader in electrical and utility solutions, significantly contributes to data center build-outs by providing end-to-end infrastructure products. These include reliable connectivity, structured cabling, wiring devices, enclosures, and modular prefabricated systems for high-density server rooms and power distribution. Through brands like PCX and Hubbell Premise Wiring, it ensures scalability, maximum uptime, and regulatory compliance, backed by a 25-year guarantee. Amid AI-driven demands, Hubbell’s vertically integrated approach supports efficient grid-to-chip power management, enabling faster, resilient expansions for colocation and enterprise facilities.

 

 

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