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Record W565474738

MEDIAN BUS LANE DESIGN IN VANCOUVER, BC: THE #98 B-LINE

2003· article· en· W565474738 on OpenAlexaboutno aff
Shengbo Eben Li

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldSocial Sciences
TopicTransportation Planning and Optimization
Canadian institutionsnot available
Fundersnot available
KeywordsTransport engineeringHeadwayTransit (satellite)Intersection (aeronautics)Travel timeOffset (computer science)MedianLine (geometry)TelecommunicationsGeographyComputer sciencePublic transportEngineeringMathematics
DOInot available

Abstract

fetched live from OpenAlex

The #98 B-Line rapid bus service was planned to provide fast, reliable, and frequent bus service to connect Downtown Vancouver and Richmond City Center – a fast growing suburban business corridor. The #98 B-Line service covers a total distance of 16 km (10 mile) with 37 stations round trip spaced on average at approximately 1.0 km (0.6 mile) apart. Peak travel times were projected 39 to 42 minutes from previously 45 to 48 minutes travel times. The bus fleet consisted of 23 articulated buses operated at 6-minute headway during the peak periods. In order to provide the #98 B-Line with more competitive travel speeds, transit priority measures were provided along the appropriate sections of the route. As a key transit priority measure, 2.0 km (1.2 mile) two directional median bus lanes were implemented on No.3 Road between Westminster Highway and Sea Island Way in Richmond. The median bus lanes encompass 11 signalized intersections, 4 median bus stops in each direction, and many abutting businesses. This paper will discuss the considerations of median bus lanes, the access management schemes along the corridor, traffic operations at signalized intersections to accommodate U-turn provisions, the intersection design with offset opposing left-turn bays, the treatments at the transition area to the median bus lanes, and the median bus stop design parameters. Li 3

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.893
Threshold uncertainty score0.213

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0010.000
Scholarly communication0.0010.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0080.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.031
GPT teacher head0.283
Teacher spread0.252 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designNot applicable
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations1
Published2003
Admission routes1
Has abstractyes

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