{ "schema_version": "regional-road-safety.v1", "release_ready": true, "route": "south-tipperary-west-waterford-road-safety", "canonical": "https://bronaghenglish.com/south-tipperary-west-waterford-road-safety/", "period": { "start": "2018-01-01", "end": "2023-12-31", "years": 6, "label": "1 January 2018–31 December 2023 (six complete calendar years)" }, "geography": { "south_tipperary": { "label": "South Tipperary", "leas": [ "Clonmel", "Carrick-on-Suir", "Cahir", "Cashel-Tipperary" ], "municipal_districts": [ "Clonmel", "Carrick-on-Suir", "Tipperary–Cahir–Cashel" ], "population_2022": 89726 }, "west_waterford": { "label": "West Waterford", "leas": [ "Dungarvan", "Lismore" ], "municipal_districts": [ "Dungarvan–Lismore" ], "population_2022": 33738 } }, "units": { "people_killed": "people", "fatal_collision_records": "fatal-collision records", "serious_collision_records": "serious-injury collision records", "fatal_plus_serious_collision_records": "fatal-collision records plus serious-injury collision records", "rate": "count divided by fixed 2022 resident population divided by six years, multiplied by 100,000", "exposure_limit": "A resident-population rate is not a traffic-exposure, per-journey or personal-risk measure." }, "method": { "primary_assignment": "Primary aggregates use the declared coordinate method: RSA source rows are assigned by published coordinate to official 2022 LEA polygons, then selected for the four South Tipperary or two West Waterford LEAs.", "record_discrepancy": "One South serious-injury RSA record has County text saying Cork, while its published coordinate is inside the Cahir LEA polygon. It is included under the declared coordinate method. Neither the County field nor the coordinate is assumed infallible; the actual location remains uncertain.", "county_label_sensitivity": "The alternative county-label-restricted scenario retains only South rows whose RSA County text says Tipperary. It is a sensitivity scenario, not the primary method.", "source_extract_date": "2026-09-20", "provisional_note": "RSA collision information for 2022 onwards is provisional and subject to change.", "missing_coordinate_rows": 185, "missing_coordinate_treatment": "Rows missing coordinates remain nationally unassigned and are not allocated to either selected region.", "public_data_boundary": "Only aggregate area values are released; private source IDs and exact points are not included." }, "areas": { "south_tipperary": { "fatal_collision_records": 38, "people_killed": 43, "death_rate_per_100000_per_year": 7.99, "serious_collision_records": 131, "serious_rate_per_100000_per_year": 24.33, "fatal_plus_serious_collision_records": 169, "fatal_plus_serious_rate_per_100000_per_year": 31.39, "road_users": { "drivers": 20, "passengers": 9, "pedestrians": 10, "motorcyclists": 4, "cyclists": 0, "e_scooter_other": 0 } }, "west_waterford": { "fatal_collision_records": 5, "people_killed": 5, "death_rate_per_100000_per_year": 2.47, "serious_collision_records": 51, "serious_rate_per_100000_per_year": 25.19, "fatal_plus_serious_collision_records": 56, "fatal_plus_serious_rate_per_100000_per_year": 27.66, "road_users": { "drivers": 2, "passengers": 0, "pedestrians": 2, "motorcyclists": 1, "cyclists": 0, "e_scooter_other": 0 } } }, "comparisons": { "death_rate_ratio": 3.23, "serious_rate_ratio": 0.97, "fatal_plus_serious_rate_ratio": 1.13, "serious_rate_summary": "The serious-injury collision-record rates were close: 24.33 versus 25.19 per 100,000 residents per year.", "death_rate_summary": "On this fixed-population basis, South Tipperary's annual road-death rate was about 3.2 times West Waterford's." }, "sensitivity_aggregates": { "county_label_restricted": { "label": "County-label-restricted sensitivity", "method": "South serious-injury records restricted to RSA County text Tipperary; West Waterford unchanged.", "areas": { "south_tipperary": { "serious_collision_records": 130, "serious_rate_per_100000_per_year": 24.15, "fatal_plus_serious_collision_records": 168, "fatal_plus_serious_rate_per_100000_per_year": 31.21 }, "west_waterford": { "serious_collision_records": 51, "serious_rate_per_100000_per_year": 25.19, "fatal_plus_serious_collision_records": 56, "fatal_plus_serious_rate_per_100000_per_year": 27.66 } }, "serious_rate_ratio": 0.96, "fatal_plus_serious_rate_ratio": 1.13, "finding": "Both aggregate scenarios show a similar serious-injury collision-record rate finding; the one-record discrepancy does not resolve the actual location question." } }, "annual_people_killed": [ { "year": 2018, "south_tipperary": 8, "west_waterford": 1 }, { "year": 2019, "south_tipperary": 8, "west_waterford": 1 }, { "year": 2020, "south_tipperary": 4, "west_waterford": 2 }, { "year": 2021, "south_tipperary": 6, "west_waterford": 0 }, { "year": 2022, "south_tipperary": 5, "west_waterford": 1 }, { "year": 2023, "south_tipperary": 12, "west_waterford": 0 } ], "cahir_cashel_context": { "people_killed": 23, "fatal_collision_records": 21, "population_2022": 44532, "comparison_set": "five Tipperary municipal districts", "death_count_statement": "The district had the highest raw death count among the five municipal districts in this comparison.", "rate_statement": "Clonmel's fixed-population rate was slightly higher.", "limits": [ "This is a measurement panel for the selected five-district comparison, not a nationwide ranking.", "The figures do not rank total crashes or establish a cause or responsibility." ] }, "sources": [ { "label": "RSA collision-map source CSV", "url": "https://public.tableau.com/views/MapofCollisions/SourceData.csv?:showVizHome=no", "scope": "Public collision-map extract used for fatal and serious-injury collision records." }, { "label": "RSA road-traffic collision data", "url": "https://www.rsa.ie/road-safety/statistics/road-traffic-collision-data", "scope": "RSA data landing page and definitions." }, { "label": "CSO Census 2022 LEA population CSV", "url": "https://www.cso.ie/en/media/csoie/census/census2022/SAPS_2022_CSOLEA270923.csv", "scope": "Fixed resident-population denominators for the selected 2022 LEAs." }, { "label": "CSO 2022 LEA boundary service", "url": "https://services-eu1.arcgis.com/BuS9rtTsYEV5C0xh/arcgis/rest/services/CSO_Local_Electoral_Areas_National_Statistical_Boundaries_2022_Ungeneralised_view/FeatureServer", "scope": "Official 2022 LEA boundaries used for the geographic definition." }, { "label": "CSO Census 2022 small-area population statistics", "url": "https://www.cso.ie/en/census/census2022/census2022smallareapopulationstatistics/", "scope": "CSO population and boundary download context." }, { "label": "Waterford municipal-district definition, S.I. No. 635/2018", "url": "https://www.irishstatutebook.ie/eli/2018/si/635/made/en/html", "scope": "Dungarvan–Lismore municipal-district definition." }, { "label": "Existing South Tipperary comparison and methodology", "url": "https://bronaghenglish.com/cahir-cashel-road-statistics/", "scope": "Existing Cahir–Cashel context and measurement panel." }, { "label": "Sources and methodology", "url": "https://bronaghenglish.com/sources-methodology/", "scope": "Existing site methodology context." } ], "limitations": [ "The two areas differ in population, settlement pattern, road network and traffic mix.", "West Waterford's five deaths make its estimate unstable; one or two deaths would materially change its rate.", "Resident population is not vehicle-kilometre exposure: visitors, commuters, freight and through-traffic cross the boundaries.", "Serious-injury figures are collision records, not necessarily the number of people seriously injured.", "Serious records are not people and are not all reported crashes.", "No formal confidence intervals are computed here because the collision-level clustering method has not been reviewed.", "This area-level comparison does not establish causation, fault, negligence or legal responsibility." ], "scope_note": "Factual record. No finding of causation or responsibility is made here.", "video": { "duration_seconds": 85, "duration_status": "actual_receipt", "asset_directory": "assets/regional-road-safety-2018-2023", "video": "comparison.mp4", "poster": "poster.jpg", "captions": "captions.vtt", "transcript": "transcript.txt" } }