Road traffic – Counting Sections – Loiret Department – 2022
Description
Geolocation of homogeneous traffic sections on the departmental road network of Loiret accompanied by annual traffic indicators (TMJA all vehicles/share of heavy goods vehicles in percentage/TMJA heavy-duty vehicles) – 2022 edition
**Collection Context**
Knowledge of the total traffic to be flowed on a road (all vehicles combined) is essential to give the route geometric characteristics in relation to its importance and speeds, to draw up accident assessments and to propose route or safety adjustments. It is also essential to calculate the pavement structure needed in the case of rehabilitation or development projects, based on heavy-duty traffic.
**Collection method**
The departmental road network has been divided into homogeneous sections of traffic. In addition to the permanent stations, temporary counts are carried out by the DI teams each year to complete the road traffic base. Annually, nearly 500 metering installations and deposits are carried out on a regular basis. In order to consolidate and maintain the road traffic base, it was decided to count at least once every 5 years the traffic of each section. The counting frequency is calculated according to predefined criteria.
For permanent traffic counting points (117 equipment), the collection and exploitation of data can be carried out with hourly steps, the discrimination of vehicles is effective on all these sites (TV/PL or VL/PL restitution).
Permanent traffic counting stations can be characterised by the type of data available:
. 30 stations are able to return flow-type data with discrimination of vehicles according to length.
. 87 stations are able to return speed + speed data with discrimination of vehicles according to length.
Of the last 87 equipment, a real-time visualisation/collection of data is a priori possible, on the other hand this requires a permanent connection for each equipment (RTC, GSM or Internet IP).
Thus road congestion can be visualised/analysed at these points of the network.
An automatic data collection procedure at regular intervals can also be put in place to avoid permanent occupancy of the BTI, GSM or IP protocol lines.
**Attributes**
| field | Alias ▲ Type
| – | – —
| ‘objectID’ | | ‘integer’
| ‘road’ | Road name (long) ⋆ ‘char’ -’
| ‘PRD’ | Point reference start ⋆ ‘integer’
| ‘Abd’ | Abscisse debut section ▲ ‘integer’
| ‘PRF’ | End-section marker ‘integer’
| ‘ABF’ | Abscisse fin section ‘integer’
| ‘cumuld’ | Cumul beginning section ▲ ‘integer’
| ‘cumulf’ | Cumul fine section ‘integer’
| ‘id_route’ | Road name (short) ⋆ ‘char’ ⋆
| ‘pr_cptge’ | PR+ABS counting ▲ ‘char’ ⋆
| ‘categorie’ | Category ▲ ‘integer’ ⋆
| ‘section_in’ | Section index ▲ ‘char’
| ‘id_trafic’ | Identifier traffic ▲ ‘char’ ⋆
| ‘id_site’ | Identifier site ▲ ‘char’ ⋆
| ‘name_site’ | Site name ▲ ‘char’ ⋆
| ‘place’ | Place ⋆ ‘char’ -’
| ‘type’ | Type equipment ▲ ‘char’ ⋆
| ‘cptge_year’ | Year ▲ ‘integer’ ⋆
| ‘value_type’ | Type value ▲ ‘char’ ⋆
| ‘mja_tv’ | Average Annual Daily All Vehicles ⋆ ‘integer’
| ‘mja_pl’ | Average Annual Daily Heavy Weight ⋆ ‘integer’
| ‘p_pl’ | Percentage Height Weight ⋆ ‘double’
| ‘st_length(shape)’ | | ‘double’ ▲
For more information, see [the metadata on the Isogeo catalog](https://open.isogeo.com/s/1742fb942d7b4756b9778c3b3cbc992e/HWglEr-z4Bry_rKQOTINX9gAH4Yu0/r/45245fa5db67423e8423318cc9c29a73).
Resources
| Name |
Format |
Description |
Link |
|
53 |
|
https://www.data.gouv.fr/api/1/datasets/r/a476a75c-9609-426e-b0a5-cdce196c220d |
|
57 |
|
https://www.data.gouv.fr/api/1/datasets/r/c87e594d-429c-4285-813b-b08d402103ad |
|
33 |
|
https://www.data.gouv.fr/api/1/datasets/r/2714297e-64c7-407f-85a2-b0cdfcdb13e6 |
Tags
- transports
- donnees-ouvertes
- infrastructures
- mobilite
- route
- sections-de-comptage
- 2022