Road traffic - Counting sections - Loiret department - 2023
Description
Geolocation of homogeneous sections of traffic on the Départemental du Loiret road network accompanied by annual traffic indicators (TMJA all vehicles / Share of heavy goods vehicles in percentage / TMJA heavy goods vehicles) - 2023 edition
**Collection context**
Knowledge of the total traffic to be flown on a road (all vehicles combined) is essential in order to give the track geometric characteristics commensurate with its importance and the speeds used, to draw up accident reports and to propose route or safety arrangements. It is also essential for calculating the necessary pavement structure 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 ID teams each year to complete the road traffic base. Annually, nearly 500 meter installations and removals are carried out on a time and means basis. In order to consolidate and make the road traffic base more reliable, it was decided to count traffic from each section at least once every 5 years. The counting frequency is calculated according to predefined criteria.
For the points of permanent traffic counting (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 (restitution TV/PL or VL/PL).
Permanent traffic counting stations can be characterized by the type of data available:
. 24 stations are able to render data of flow type with discrimination of vehicles according to length.
. 93 stations are able to render data of type flow + speed with discrimination of vehicles according to length.
Of these last 93 equipment, a real-time visualization/collection of data is a priori possible, on the other hand it presupposes a permanent connection for each equipment (RTC, GSM or IP Internet).
Thus traffic congestion can be visualized/analyzed on these points of the network.
An automatic data collection procedure at regular intervals can also be set up to avoid permanent occupancy of BTI, GSM or IP lines.
**Attributes**
| Field | Alias | Type |
| --- | --- | --- |
| `objectid` | | `integer` |
| `route` | Road name (long) | `char` |
| `prd` | Baseline | `integer` |
| `abd` | Abscissa beginning section | `integer` |
| `prf` | End marker section | `integer` |
| `abf` | Abscisse fin section | `integer` |
| `cumuld` | Cumulation at the beginning of section | `integer` |
| `cumulf` | Cumulation end section | `integer` |
| `id_route` | Name of the (short) route | `char` |
| `pr_cptge` | PR+ABS counting | `char` |
| `category` | Category | `integer` |
| `section_in` | Index section | `char` |
| `id_traffic` | Traffic ID | `char` |
| `id_site` | Site identifier | `char` |
| `site_name` | Site name | `char` |
| `place` | Venue | `char` |
| `type` | Equipment type | `char` |
| `cptge_year` | Year | `integer` |
| `value_type` | Type value | `char` |
| `mja_tv` | Annual Average Daily All Vehicles | `integer` |
| `mja_pl` | Annual Average Daily Heavy Weights | `integer` |
| `p_pl` | Percentage Heavy Weight | `double` |
| `st_length(shape)` | | `double` |
For more information, see [Isogeo Catalog Metadata](https://open.isogeo.com/s/1742fb942d7b4756b9778c3b3cbc992e/HWglEr-z4Bry_rKQOTINX9gAH4Yu0/r/f2d4c1138ac44092a24be6d8b9bd54ba).
Resources
| Name |
Format |
Description |
Link |
|
57 |
|
https://www.data.gouv.fr/api/1/datasets/r/ffff83e5-df50-4a0d-b59b-844a84705262 |
|
33 |
|
https://www.data.gouv.fr/api/1/datasets/r/ad1b9f6d-0e86-4c1c-9ee0-02efe05aff0f |
|
53 |
|
https://www.data.gouv.fr/api/1/datasets/r/926f98be-a8a5-44bf-8609-644c807f604a |
Tags
- transports
- reseaux-de-transport
- donnees-ouvertes
- infrastructures
- mobilite
- 2023
- route
- sections-de-comptage