{ "name": "DamageRestore HQ Pavement Lifecycle Comparison", "title": "Pavement Lifecycle Comparison", "url": "https://damagerestorehq.com/datasets/pavement-lifecycle-comparison/", "csv": "https://damagerestorehq.com/datasets/pavement-lifecycle-comparison.csv", "markdown": "https://damagerestorehq.com/datasets/pavement-lifecycle-comparison/index.md", "computed_at": "2026-09-26", "license": "https://damagerestorehq.com/terms", "headline": "The Pavement Lifecycle Comparison carries 2 published figures read from 2 sources' own pages, from 35 to 50 year, read 26 September 2026.", "quotes": [ "The Pavement Lifecycle Comparison carries 2 published figures read from 2 sources' own pages, from 35 to 50 year, read 26 September 2026.", "2 of the 8 named sources read in full publish a figure; 5 publish none, read 26 September 2026.", "Pavement Lifecycle Comparison, authority FHWA: median 35 year across 1 source, read 26 September 2026.", "Pavement Lifecycle Comparison, authority FDOT: median 50 year across 1 source, read 26 September 2026.", "The median is unchanged since 25 September 2026 (was 42.50 year across 2)." ], "citation": "\"DamageRestore HQ Pavement Lifecycle Comparison\", updated 2026-09-26, https://damagerestorehq.com/datasets/pavement-lifecycle-comparison/.", "changed_since": { "since": "2026-09-25", "previous_median": 42.5, "delta": 0, "direction": "unchanged", "sentence": "The median is unchanged since 25 September 2026 (was 42.50 year across 2)." }, "national": { "unit": "year", "n": 2, "median": 42.5, "min": 35, "max": 50, "p25": null, "p75": null, "mean": 42.5, "units": { "year": 2 }, "published_sources": 2, "named_sources": 8, "read_sources": 8, "not_published": 5, "published_share": 0.25 }, "by_axis": { "authority": { "FHWA": { "year": { "n": 1, "median": 35, "min": 35, "max": 35, "p25": 35, "p75": 35, "mean": 35 } }, "FDOT": { "year": { "n": 1, "median": 50, "min": 50, "max": 50, "p25": 50, "p75": 50, "mean": 50 } } } }, "rows": [ { "source": "fhwa.dot.gov", "url": "https://www.fhwa.dot.gov/pavement/lcca/150304.cfm", "figure": "35 years", "value": 35, "unit": "year", "vat": null, "axis": { "authority": "FHWA" }, "retrieved_at": "2026-09-12", "quote": "The differential residual value between pavement design strategies is generally not very large, and, when discounted over 35 years, tends to have little effect on LCCA results.", "source_class": "primary-government", "text_sha256": "f36bb2430c3c233816a507cb3f70043b40c8bd6fd22078a45afde3916eee63bd" }, { "source": "USDOT ROSA-P: Evaluation of long-life concrete pavement practices for Florida", "url": "https://rosap.ntl.bts.gov/view/dot/25405", "figure": "50 years", "value": 50, "unit": "year", "vat": null, "axis": { "authority": "FDOT" }, "retrieved_at": "2026-09-12", "quote": "Increased traffic on roadways, costs due to maintenance-related traffic delays, and increasing construction costs have led the Florida Department of Transportation (FDOT) to evaluate various pavement design parameters which would yield pavement service lives of 50 years or more.", "source_class": "primary-government", "text_sha256": "b1968f5db71fd6778027c3ae44c00025897438ce04854766ae155632a5f62bba" } ], "not_published": [ { "source": "FHWA Mobile Asphalt Technology Center data", "url": "https://www.fhwa.dot.gov/pavement/asphalt/matc/where-we-have-been-data.cfm", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "WSDOT Gray Notebook pavement projects and progress", "url": "https://wsdot.wa.gov/about/data/gray-notebook/gnbhome/preservation/pavement/projectsandprogress.htm", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "USDOT ROSA-P: Transportation Synthesis Report, pavement service life", "url": "https://rosap.ntl.bts.gov/view/dot/29467", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Michigan Concrete Association: concrete vs asphalt longevity", "url": "https://info.miconcrete.org/blog/concrete-vs-asphalt-how-long-each-lasts", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Pavement Interactive life-cycle cost analysis", "url": "https://pavementinteractive.org/reference-desk/pavement-management/analysis/life-cycle-cost-analysis/", "retrieved_at": "2026-09-12", "reason": "every candidate on the page was refused" } ], "sources": [ { "url": "https://www.fhwa.dot.gov/pavement/lcca/150304.cfm", "label": "FHWA supplement to the 1998 LCCA technical bulletin", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.fhwa.dot.gov/pavement/asphalt/matc/where-we-have-been-data.cfm", "label": "FHWA Mobile Asphalt Technology Center data", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://wsdot.wa.gov/about/data/gray-notebook/gnbhome/preservation/pavement/projectsandprogress.htm", "label": "WSDOT Gray Notebook pavement projects and progress", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://rosap.ntl.bts.gov/view/dot/29467", "label": "USDOT ROSA-P: Transportation Synthesis Report, pavement service life", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://rosap.ntl.bts.gov/view/dot/25405", "label": "USDOT ROSA-P: Evaluation of long-life concrete pavement practices for Florida", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://info.miconcrete.org/blog/concrete-vs-asphalt-how-long-each-lasts", "label": "Michigan Concrete Association: concrete vs asphalt longevity", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://pavementinteractive.org/reference-desk/pavement-management/analysis/life-cycle-cost-analysis/", "label": "Pavement Interactive life-cycle cost analysis", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.fhwa.dot.gov/pavement/lcca/150304.cfm", "label": "fhwa.dot.gov", "license": "the publisher's own terms; quoted for reporting and comment" } ], "methodology": "Every row is a verbatim sentence read from the named source's own page through the estate's fetch service on the date shown, hash-pinned to the stored read (the sha of the page's visible text; the raw page is mirrored to R2). 2 of the 8 named sources that could be read published a usable figure; 5 published none and are recorded as not published, never filled in; 0 could not be read (blocked, dead or unreachable) and count nowhere. The headline figures (median, minimum, maximum, quartiles) are over ONE figure per source in year (a source's median where its page yielded several accepted sentences), so N counts sources, never sentences; 30 candidate sentence(s) were refused by a reviewer with the reason recorded. Derivation as chartered: one row per authority per surface: the design life and observed service life it states, the analysis period it discounts over, the discount rate, and the maintenance events it schedules - joined to the installed prices from the price index so the comparison the buyer wants (cost per year of surface, not cost on day one) is computed from a measured life and a measured price rather than from either alone; the spread between authorities is itself the figure, because a homeowner comparison quoting one number hides that Washington observes 50 years for concrete where Florida designs to 20", "embed": "

35 to 50 year

2 published figures, Pavement Lifecycle Comparison, across 2 sources, read 26 September 2026

Source: DamageRestore HQ Pavement Lifecycle Comparison
" }