labor · transport · family: the regulator demands evidence that cannot exist
nobody countsthe whole day
Rail, maritime, air and passenger transit all have workers whose on-call time is not well tracked, and a complete picture of time at work is needed to determine impacts on sleep, fatigue and injury
Problem statement
Fatigue runs through the research agenda of the NORA Transportation, Warehousing and Utilities Council as a recurring theme, and the council points out that a basic quantity needed to study it, how long a worker has actually been at work, is not fully known. "Rail, maritime, air, and passenger transit sub-sectors all have workers whose time on-call is not well tracked and who may also have long commutes or second jobs," the agenda states, and concludes: "We need a complete picture of time at work in order to determine impacts on sleep, fatigue, and injury." The agenda describes no instrument that produces that picture. The pieces it names are on-call time that is not well tracked, and the long commutes or second jobs the same workers may also have.
Why this matters
Transportation and warehousing is a sector where irregular schedules are unusually common, and the agenda notes that fatigue among transportation drivers and equipment operators has a potential safety impact on the public as well as the workforce. The agenda reports that 31.5% of transportation and warehousing workers are on "alternate shifts" — shifts falling at least partly outside 6 a.m. to 6 p.m. — against 17.7% for U.S. workers overall, and that the sector has "a much higher prevalence of on-call workers (11.3% in 2015) than any other sector." The agenda also reports elevated health risks among the sector's workers: obstructive sleep apnea at 8% versus 4% in the general population and other occupational cohorts, and the council notes that poor sleep and other health conditions are associated with increased risk of occupational safety incidents. The agenda's point is that a complete picture of time at work is needed in order to determine the impacts on sleep, fatigue and injury.
What’s been tried and why it hasn’t worked
The agenda lists the systematic approaches currently recommended for impairment, fatigue included: workplace policy and practice changes, fatigue management programs, and safety management systems. It says these still need to be evaluated. It names duty times and rest periods as one contributor to impairment among several, alongside administrative policies, the demands of the work, medical conditions and work-life balance. It describes no existing method that records on-call time, commutes and second jobs together. The agenda also documents the surrounding pressures — misclassification as independent contractors, which costs workers their employee protections, and lease-purchase arrangements in trucking that bind drivers "to their employer with debt they cannot sustain." Even the vocabulary is not settled. The council identifies a prerequisite: there is "a need to establish standard meanings for terms such as temporary, on-call, shift work, etc., so that study results can be understood and compared." The agenda's summary of the evidence base is that "[t]here is so far, little health and safety research on how non-standard work arrangements are affecting the safety and health of workers, including transportation and warehousing workers" — and, writing about work schedules that may be detrimental to safety, health and well-being, it notes that scheduling algorithms and the use of brokering apps "might be making the problem worse."
What would unlock progress
The agenda asks for the complete picture and does not say how to get it. One route, proposed here and not taken from the agenda, is to move the measurement to the worker's own device, with the worker controlling disclosure — a worker-held time-at-work ledger that captures on-call windows, commute, second jobs and sleep opportunity, and reports an aggregate exposure metric rather than raw whereabouts. The privacy structure is the hard and interesting part. The agenda does not discuss privacy, but in its objective on impairment it says research approaches and interventions should "not penalize workers for their health status and needs." A second, cheaper unlock is definitional and would help immediately: a published, tested taxonomy of work-arrangement terms with operational definitions, which is in line with what the council asks for when it calls for standard meanings so that study results can be compared. For the first, the agenda itself mentions "automated sensing devices and alerts" as possible technological assists that could help workers recognize impairment; candidate ingredients for a ledger, again this write-up's suggestion and not the agenda's, would be passive sleep and activity estimation from consumer wearables and geofenced commute detection, assembled into an instrument designed for a worker's interest rather than an employer's.
Entry points for student teams
A team could build and pilot the worker-held ledger with a small cohort (student drivers, delivery workers, hospital staff on call), measuring the gap between logged duty hours and total time-at-work plus sleep opportunity, and reporting the distribution of that gap — a number the agenda does not report. A privacy-focused team could design the disclosure architecture: what aggregate the worker can share with a regulator or clinician that supports a fatigue judgment without exposing location history, and test whether workers find it acceptable. A third team could do the definitional work as a genuine research contribution — draft operational definitions for on-call, standby, split-shift and second-job time, then apply them to two existing public datasets and show how much the estimated prevalence of long work weeks changes. Relevant skills: mobile sensing and app development, sleep and fatigue science, survey methodology, privacy engineering, transportation policy.
Genes
Genes marked “+” were added in a later review.
Structural cousins: stuck the same way, in other fields
Sources
NORA Transportation, Warehousing and Utilities Sector Council, "National Occupational Research Agenda for Transportation, Warehousing and Utilities," NIOSH, February 2018, (read via mirror ), accessed 2026-08-17 go to source 1 ↗ go to source 2 ↗
Working notes
Notes made while writing and checking this brief, shown as written. They use working shorthand.
All quotations and statistics are verbatim from Objectives 3, 5 and 9 of the NORA Transportation, Warehousing and Utilities agenda (February 2018), which attributes them to McMenamin 2007, BLS 2005, BLS 2017a, Katz and Krueger 2016, Martin et al. 2009, Thiese et al. 2015a and 2015b, and Viscelli 2016 — none independently retrieved, flagged for the verifier. The canonical cdc.gov PDF returns 403 to automated fetches; the text was read from the RestoredCDC mirror, recorded above. `failure:regulatory-mismatch` is used in its "wrong measurement basis" sub-pattern: hours-of-service rules assume employer-recorded duty time is a usable proxy for fatigue exposure. `temporal:worsening` passes the three-requirement test: (1) mechanism — workplace fissuring fragments a worker's time across employers none of whom holds the whole record, so each additional arrangement removes another slice from measurability; (2) trajectory — the agenda reports the probability of a transportation and warehousing worker being in a non-standard arrangement rising from 10.8% in 2005 to 17.5% in 2015 (two different survey instruments — the CPS Contingent Work Supplement and a RAND replication — so the trend is indicative rather than a clean series), with the steepest increase among workers aged 55–75; (3) the measurement barrier itself is degrading, not merely becoming more salient. `stakeholders:multi-institution` was considered (FMCSA/FRA/FAA hours rules, employers' scheduling systems, and workers' compensation and health systems each hold a piece of the record) but changed at verification to `stakeholders:institutional`: it fails criterion (2) of the three-criteria test by the brief's own logic — the proposed unlock is a worker-held instrument that no institution has to co-own, so the inter-institutional boundary is not the binding barrier; the binding constraint is the missing measurement (`constraint:data`) and the regulatory basis (`constraint:regulatory`), and adoption requires organizational buy-in rather than inter-agency coordination. `constraint:coordination` was ruled out under filter (2): even with perfect institutional goodwill, no instrument currently produces the measurement. Related existing briefs: `labor-gig-worker-occupational-injury-tracking` (no injury reporting pathway for platform workers) and `labor-migrant-worker-cross-jurisdiction-health` (exposure histories fragmented across employers) are neighbours; this brief is the distinct problem of measuring time rather than injury or chemical exposure, and it applies to conventionally employed workers with on-call obligations, not only to non-standard workers.
Source type: Convened-consensus (multi-stakeholder national research council stating that on-call time in its sector is not well tracked and that a complete picture of time at work is needed to determine impacts on sleep, fatigue and injury).
Verified at intake 2026-08-17: gate (net) + adversarial source check + contested-tag second coding.
Reconciliation 2026-10-01: Fact repair after reading the whole agenda (26 pages; Objectives 3, 5 and 9 line by line, and the full text searched). A second reader went over the repairs on the same day, read the agenda again from an Internet Archive capture of the cdc.gov PDF (the capture and the RestoredCDC mirror are the same file, byte for byte), and tightened several of them; this note describes the final state. The agenda says nothing about hours-of-service rules, electronic logging devices or any duty-hour regulation; the write-up had built its framing on them. (1) Long title. Old: "Fatigue Rules for Truckers, Rail Crews and Pilots Regulate Duty Hours for One Employer, but Nobody Can Measure How Long a Worker Has Actually Been Awake and Working." The agenda does not discuss fatigue rules, and the sentence the write-up rests on names rail, maritime, air and passenger transit workers, not truckers; it says a complete picture is needed, not that nobody can measure. New: "Rail, Maritime, Air and Passenger Transit All Have Workers Whose On-Call Time Is Not Well Tracked, and a Complete Picture of Time at Work Is Needed to Determine Impacts on Sleep, Fatigue and Injury," which follows the agenda's own sentence: the sub-sectors each have some workers whose on-call time is not well tracked, not all of their workers. The display title is unchanged. (2) Problem Statement. Removed: that fatigue is regulated in transportation "more tightly than almost any other occupational hazard," that hours-of-service rules and electronic logging devices cap and enforce duty time, that the council says duty hours are "not the quantity that determines whether someone is dangerously tired," and the example of a compliant driver with fourteen untracked hours. None of this is in the agenda. The paragraph now opens with what the agenda does say (fatigue is one of the common themes of its objectives; time at work is "not fully known," which is the write-up's rendering of the agenda's "not well tracked" and "we need a complete picture") and keeps its two quotations, which are in the agenda word for word. "No instrument produces that picture" became "The agenda describes no instrument that produces that picture." The closing sentence says only what the agenda says about the pieces: on-call time is not well tracked, and the same workers may also have long commutes or second jobs. The agenda does not say that commutes and second jobs are untracked. (3) Why This Matters. "The sector where this gap is widest" is not in the agenda; the sentence now says irregular schedules are unusually common there and gives the agenda's statement that fatigue among transportation drivers and equipment operators has a potential safety impact on the public as well as the workforce. "The health consequences are already visible in the same population" became "The agenda also reports elevated health risks among the sector's workers," because the agenda gives the sleep apnea figure without tying it to schedules. The sleep apnea comparison now reads "the general population and other occupational cohorts," as the agenda has it. The sentences saying every fatigue countermeasure "operates on a number that systematically understates exposure" and that research to set better rules "is blocked" were removed; the paragraph now ends with the agenda's own point that a complete picture is needed in order to determine the impacts; a repeat of the Problem Statement's list of the pieces was dropped from this paragraph as redundant. (4) What's Been Tried. The history of hours-of-service caps and logging devices, the claim that the device "logs the vehicle, not the human," and the claim that workers under-report hours in self-report were removed; the agenda contains none of them. In their place the paragraph gives what the agenda lists as currently recommended (workplace policy and practice changes, fatigue management programs, safety management systems, with a further need to evaluate workplace interventions) and its mention of duty times and rest periods as one contributor to impairment. "A prerequisite most fields would consider embarrassing" became "a prerequisite." The sentence saying studies of real work time "cannot be pooled" was removed; the agenda says only that standard meanings are needed "so that study results can be understood and compared," and that quotation is already in the paragraph. "Load-brokering apps" became "the use of brokering apps," the agenda's words, and the sentence now says that "the problem" in the quotation is work schedules that may be detrimental to safety, health and well-being. (5) What Would Unlock Progress. The worker-held ledger and its candidate ingredients are this write-up's proposal, not the agenda's, and the text now says so. The industrial-hygiene dosimetry "precedent" and the statement that "nobody has assembled" the ingredients were removed as not in the agenda. The paragraph now cites two things the agenda does say in its objective on impairment: that research approaches and interventions should "not penalize workers for their health status and needs," and that "automated sensing devices and alerts" are possible technological assists. The agenda does not discuss privacy, and the text says that too. (6) Entry points. "A number nobody currently has" became "a number the agenda does not report." The three starting points are otherwise unchanged; none needs a special facility. (7) Notes above. The sleep apnea figure is attributed in the agenda to Martin et al. 2009 and Thiese et al. 2015a and 2015b, not to Sieber et al. 2014; the list of attributions was corrected, and BLS 2005, which the agenda cites alongside Katz and Krueger 2016 for the 10.8% and 17.5% figures used in the notes, was added to it; the agenda's statement that poor sleep and other health conditions are associated with safety incidents is cited there to Tregear et al. 2009, Burks et al. 2016 and Laberge-Nadeau et al. 1996, which the list does not name. The source-type line said the council states that the quantity its "core safety regulation depends on cannot be measured"; the council does not say that, and the line now gives what it does say. Confirmed in the agenda and left as written: the Source line (title, council, February 2018); 31.5% of transportation and warehousing workers on "alternate shifts" against 17.7% overall, and the 6 a.m. to 6 p.m. definition; the on-call quotation with 11.3% in 2015; sleep apnea 8% versus 4%; poor sleep and other health conditions associated with increased risk of occupational safety incidents; the lease-purchase quotation; the "standard meanings" quotation; the "little health and safety research" quotation; and, in the notes above, 10.8% in 2005 and 17.5% in 2015 from two different surveys, with the steepest increase among workers aged 55 to 75. Not checked: the papers the agenda cites for these figures, which this write-up does not name as its own sources. The tag reasoning in the notes above still refers to hours-of-service rules and to FMCSA, FRA and FAA rules; those references are the tagger's reasoning and are not in the agenda. Genome tags untouched.