What are the traffic intensities of crashes with animal?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44994575%3A_____%2F17%3AN0000025" target="_blank" >RIV/44994575:_____/17:N0000025 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

What are the traffic intensities of crashes with animal?

Popis výsledku v původním jazyce

The number of animal-vehicle collisions (AVC) is to a certain degree related to traffic intensities. Only the aggregated values of the intensities are, however, usually available. The AADT represent the average number of cars which pass through a certain point along a given road segment daily. This characteristic of traffic is commonly used as an explanatory variable in regression models. The majority of AVC occur during night hours whereas the AVC peaks are usually observed within a few hours before sunrise and after sunset. AADT values do not represent well traffic intensities in the daytime. We present here data from traffic counters installed on 101 Czech roads which precisely indicate real traffic intensities in time of AVC. The overall extent of AADT values was between 412 and 56,759 cars/day (17 and 2,365 cars/hour on average, respectively), whereas the extent of the crashes was between 4 and 6,361 cars/hour. 85 % of AVC occurred at intensities lower than 1,000 cars/hour. We will present here several examples of results which were distorted by using AADT, instead of using the actual traffic intensities. We additionally focus on facts which argue against the use of AADT in AVC modelling.

Název v anglickém jazyce

What are the traffic intensities of crashes with animal?

Popis výsledku anglicky

The number of animal-vehicle collisions (AVC) is to a certain degree related to traffic intensities. Only the aggregated values of the intensities are, however, usually available. The AADT represent the average number of cars which pass through a certain point along a given road segment daily. This characteristic of traffic is commonly used as an explanatory variable in regression models. The majority of AVC occur during night hours whereas the AVC peaks are usually observed within a few hours before sunrise and after sunset. AADT values do not represent well traffic intensities in the daytime. We present here data from traffic counters installed on 101 Czech roads which precisely indicate real traffic intensities in time of AVC. The overall extent of AADT values was between 412 and 56,759 cars/day (17 and 2,365 cars/hour on average, respectively), whereas the extent of the crashes was between 4 and 6,361 cars/hour. 85 % of AVC occurred at intensities lower than 1,000 cars/hour. We will present here several examples of results which were distorted by using AADT, instead of using the actual traffic intensities. We additionally focus on facts which argue against the use of AADT in AVC modelling.

Druh

O - Ostatní výsledky

CEP obor

—

OECD FORD obor

10508 - Physical geography

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů