Data · dataset · 2015
National Road Network Sinuosity Index
Listed in Data.gov.ie
For each record (about 5,500 in total and each represents about 1km of the network) the sinuosity is calculated.
Description
It is a ratio of the actual length over the shortest path defined by the start and end nodes of the 1 km section. Section with a Sinuosity value of below 1.008 are considered straight and have a low driver demand.
Sinuosity values greater than 1.031 are considered high demand roads. It has been put forward by Smith et al. (2006, 22nd ARRB conference proceedings) that drivers experience concentration difficulties on lower demand roads rather than high demand roads. In addition Sinuosity has been shown to be a good proxy for horizontal road bendiness.
Read the rest (1 more)
Road Bendiness is an essential imput into establishing Alignment Constraint when calculating Design Speeds.
Links
Get the data
- Sinuosity 1Km Sites (KMZ/KML) data.tii.ie/Datasets/RoadSafety/Sinuosity/Sinuosity_2016.kmz ↗
download · from data gov ie
- Sinuosity 1Km Sites - Ziped Shapfile data.tii.ie/Datasets/RoadSafety/Sinuosity/Sinuosity_AvgCurve.zip ↗
download · from data gov ie
Where it is published
- Data.gov.ie dataset page data.gov.ie/dataset/national-road-network-sinuosity-index ↗
landing page · from data gov ie
Documentation and papers
- Publisher page data.tii.ie ↗
documentation · from data gov ie
Catalogue records · 1
- CKAN API data.gov.ie/api/3/action/package_show?id=3163e34e-e774-4e09-9dfe-05db068af… ↗
metadata API · from data gov ie
Topics
- From keywords
- Social Science
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| Data.gov.ie | 3163e34e-e774-4e09-9dfe-05db068af6c3 | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · data gov ie | connector:data_gov_ie@1.0.0 | |
| concepts[field].local:field:social-science | mapping · data gov ie | connector:data_gov_ie@1.0.0 | |
| created_date | source · data gov ie | connector:data_gov_ie@1.0.0 | |
| description | source · data gov ie | connector:data_gov_ie@1.0.0 | /notes |
| license | source · data gov ie | connector:data_gov_ie@1.0.0 | /license_id |
| publication_date | source · data gov ie | connector:data_gov_ie@1.0.0 | |
| title | source · data gov ie | connector:data_gov_ie@1.0.0 | /title |
| updated_date | source · data gov ie | connector:data_gov_ie@1.0.0 |