Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 111 references without a DOI — listed, not checked
no DOI — not checkedref2
no DOI — not checkedref5
no DOI — not checkedref6
no DOI — not checkedref7
no DOI — not checkedref8
no DOI — not checkedref10
no DOI — not checkedref13
no DOI — not checkedOn the Performing Arts: The Anatomy of Their Economic Problems
no DOI — not checkedref17
no DOI — not checkedref18
no DOI — not checkedref20
no DOI — not checkedref21
no DOI — not checkedref22
no DOI — not checkedref23
no DOI — not checkedref24
no DOI — not checkedref26
no DOI — not checkedref27
no DOI — not checkedref28
no DOI — not checkedref29
no DOI — not checkedref30
no DOI — not checkedref34
no DOI — not checkedFederal Highway Administration. 1956-1995
no DOI — not checkedNotice: Sliding Scale Rates in Public Land States-Rates Effective
no DOI — not checkedref40
no DOI — not checkedTrump's Move against Landmark Environmental Law Caps a Relentless Agenda
no DOI — not checkedHigh Costs May Explain Crumbling Support for US Infrastructure
no DOI — not checkedref49
no DOI — not checkedSchool Finance Reform and the Distribution of Student Achievement
no DOI — not checkedref52
no DOI — not checkedref53
no DOI — not checkedSo You Want To Do an Infrastructure Package
no DOI — not checkedref55
no DOI — not checkedHourly and Weekly Earnings of Production and Nonsupervisory Workers in Selected Industries: 1909-1995
no DOI — not checkedref57
no DOI — not checkedAmerica's Highways: Accelerating the Search for Innovation
no DOI — not checkedThe Epic and Ugly Battle over What to Do about the 710 Freeway
no DOI — not checkedref63
no DOI — not checkedThe Most Expensive Mile of Subway Track on Earth
no DOI — not checkedPleasant Ridge Journal: The Freeway It Took a Generation to Build
no DOI — not checkedref66
no DOI — not checkedThe US Has Forgotten How to Do Infrastructure
no DOI — not checkedDo Environmental Regulations Increase Construction Costs for Federal-Aid Highways? A Statistical Experiment
no DOI — not checkedLong-Run Construction Cost Trends: Baumol's Cost Disease and a Disaggregate Look at Building Material Price Dynamics
no DOI — not checkedref70
no DOI — not checkedTable 2.1. Personal Income and Its Disposition
no DOI — not checkedref72
no DOI — not checkedref73
no DOI — not checkedref74
no DOI — not checkedref75
no DOI — not checkedref76
no DOI — not checkedref77
no DOI — not checkedref78
no DOI — not checkedref79
no DOI — not checkedref80
no DOI — not checkedref81
no DOI — not checkedref82
no DOI — not checkedref83
no DOI — not checkedGovernment Organization
no DOI — not checkedCounty and City Data Book [United States], 1983
no DOI — not checkedCounty and City Data Book [United States], 1988
no DOI — not checkedref87
no DOI — not checkedref88
no DOI — not checkedref89
no DOI — not checkedref90
no DOI — not checkedref91
no DOI — not checkedref92
no DOI — not checkedref93
no DOI — not checkedFederal-Aid Highway Act of 1956: Creating the Interstate System
no DOI — not checkedThe Dwight D. Eisenhower System of Interstate and Defense Highways: Summary of the Interstate Cost Estimate (ICE) Process
no DOI — not checkedTechnological Advances in the Construction Sector
no DOI — not checkedref97
no DOI — not checkedHistorical, Demographic, Economic, and Social Data: The United States
no DOI — not checkedIPUMS National Historical Geographic Information System: Version 12.0 [U.S. Census of Population and Housing]
no DOI — not checkedref100
no DOI — not checkedref101
no DOI — not checkedThe Government Finance Database, United States: A Common Resource for Quantitative Research in Public Financial Analysis
no DOI — not checkedState General Obligation Debt Ratings
no DOI — not checkedref104
no DOI — not checkedref105
no DOI — not checkedref106
no DOI — not checkedref107
no DOI — not checkedref108
no DOI — not checkedref109
no DOI — not checkedref110
no DOI — not checkedref111
no DOI — not checkedref112
no DOI — not checkedref113
no DOI — not checkedref114
no DOI — not checkedref115
no DOI — not checkedref116
no DOI — not checkedref117
no DOI — not checkedCensus of Population and Housing
no DOI — not checkedref119
no DOI — not checkedStudy on Road Infrastructure Costs: Analysis of Unit Costs and Cost Overruns of Road Infrastructure Projects in Africa
no DOI — not checkedPart of the National Physical Development Plan (NPDP)
no DOI — not checkedref122
no DOI — not checkedTable 1. The year 2012 is estimated because it says "[r]ecently built
no DOI — not checkedMichigan Freeway Link Won't Smell as Sweet
no DOI — not checkedProject Labor Agreements
no DOI — not checkedHome of the American Auto Finds Reuther Freeway a Mixed Blessing
no DOI — not checkedref128
no DOI — not checkedAlternatively, norms of thriftiness could have broken down over time
no DOI — not checkedThe Rise of Market Power and the Macroeconomic Implications
no DOI — not checkedref131
no DOI — not checkedRegionalization and Interlocal Bargains
no DOI — not checkedref134
no DOI — not checkedHearings Before the Subcommittee on Roads of the Committee on Public Works on S. 3155
no DOI — not checkedAfter 32 Years, Motor City Gets New Lifeline
no DOI — not checkedThe Grant-In-Aid System for Interstate Highway Construction: An Accounting or Economic Problem?
no DOI — not checkedref141
no DOI — not checkedref142
checked 2026-08-27 — re-checked daily as this page is visited;
titles and statuses come from Crossref and DataCite and are not part of the signed record
Both snippets point at the live badge image and link back to this page. The
badge re-renders from the daily check, so an embed never goes stale by more than a day of visits.