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S Line (Valley Metro)

Part of the Phoenix Valley Metro Rail system

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 18, 2026
Entity authorityQ23308659 ↗
Source-derived summary

The S Line, also known as the Valley Metro Streetcar, and prior to opening as the Tempe Streetcar, is a modern streetcar in Tempe, Arizona, operated by Valley Metro. The 3-mile (4.8 km) line serves downtown Tempe, Tempe Town Lake, and the Arizona State University Tempe campus with 14 stations. Construction began in 2017, and the line opened for service on May 20, 2022.

Route and service

The S Line serves a C-shaped route through Tempe, from Tempe Town Lake to the southern edge of the Arizona State University Tempe campus, via downtown Tempe. The line operates primarily in mixed traffic, operating in the curbside lane in downtown Tempe and in center lanes elsewhere. The S Line's southern terminus, Dorsey/Apache Blvd, is a shared station with the A Line. Another connection to the A Line is available at the S Line's Third St/Mill and Third St/Ash stations, which are within walking distance of the A Line Mill Ave/Third St station.

Upon launch, the S Line operated every 20 minutes. Weekday and Saturday service operates for 18 hours per day, and Sunday service operates for 16 hours per day. Northbound trips are scheduled at 19 minutes, and southbound trips are scheduled at 24 minutes.

Editorial summary

Begin with the source’s own compact description: “S Line (Valley Metro)” is part of the Phoenix Valley Metro Rail system. The dossier treats that line as a proposition to test through Line, Valley and Metro, not as a finished interpretation.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—2017, 2022—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, Line, Valley and Metro is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “part of the Phoenix Valley Metro Rail system” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 18, 2026. The linked authority identifier is Q23308659. None of the 1 selected statements returned an explicit reference. The first chronological checks are 2017 and 2022.

Critical limits

A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

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  • Locating named sources
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The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “S Line (Valley Metro)”, its source revision and the description used here.
  2. Expand the search: follow S Line (Valley Metro) primary sources, S Line (Valley Metro) archive and Line research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

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Source & attribution

This entry incorporates text from “S Line (Valley Metro)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.