← bridge ontologyBridge Asset › Alignment and Location System
Crossing Alignment
bridge.alignment_system.crossing_alignmentpublishedEdit
Definition
Alignment of the railway, road, river, or utility crossed by the bridge.
- Class kind
- component
- Abstract
- no
- Depth
- 2
- Origin
- reference source
- Ontology
- engineering-reference-book.bridge v1.0.0
- Aliases
- Railway Alignment, Crossed Road Alignment, Rail, Top of Rail, Railroad, Railway
- Abbreviations
- —
- Last changed
- 7/27/2026, 2:50:05 PM
Identification
- Positive labels
- Crossing Alignment, Railway Alignment, Crossed Road Alignment, Rail, Top of Rail, Railroad, Railway
- Negative labels
- —
- Visual features
- intersecting centerlines; crossing corridor
- Min identity clues
- 2
Evidence
- Preferred views
- plan, key_plan, general_arrangement
- Evidence types
- view, detail, schedule, note, dimension, level, section_callout
- Source trace required
- yes
Measurements (2)
| Name | Symbol | Unit | Required |
|---|---|---|---|
| Skew Angle | THETA | deg | required |
| Chainage | CH | m | optional |
Relationships (0)
None declared.
BOQ items (0)
None — no quantity is derived from this class directly.
Validation
- Blocking if missing
- yes
- Human review allowed
- yes
no_evidence_no_numberretain_document_page_bbox_and_evidence_iddo_not_mix_drawing_revisionsdo_not_average_conflicting_valuesprefer_explicit_labels_over_shape_onlymatch_plan_elevation_and_section_when_applicable
Provenance
- Basis
- drawing_observed
- Project values included
- no
- vadhavan_port_rob_viaduct_gad
- pages 2, 3, 6, 7
- regional_terminology
- no page list
Children (0)
None — this is a leaf class and can be deleted.