Impact of Fog Levels on Free-Flow Speeds in Mixed Traffic Conditions

The effect of fog levels on drivers' free-flow speeds for various vehicles in mixed traffic conditions is examined in this research. Visibility and free-flow speeds from eight highways are simultaneously collected and analyzed. The findings show distinct driver behavior patterns under different...

Full description

Saved in:
Bibliographic Details
Main Authors: Angshuman Pandit, Anuj Kishor Budhkar
Format: Article
Language:English
Published: University of Žilina 2025-04-01
Series:Communications
Subjects:
Online Access:https://komunikacie.uniza.sk/artkey/csl-202502-0004_impact-of-fog-levels-on-free-flow-speeds-in-mixed-traffic-conditions.php
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1850216577673199616
author Angshuman Pandit
Anuj Kishor Budhkar
author_facet Angshuman Pandit
Anuj Kishor Budhkar
author_sort Angshuman Pandit
collection DOAJ
description The effect of fog levels on drivers' free-flow speeds for various vehicles in mixed traffic conditions is examined in this research. Visibility and free-flow speeds from eight highways are simultaneously collected and analyzed. The findings show distinct driver behavior patterns under different fog conditions. In dense fog, small visibility improvements lead to linear speed increases, while in light fog, speeds are mostly unchanged, though drivers maintain higher speeds than in clear conditions. Regardless of a vehicle type, driving patterns in fog are similar, though specific speeds differ. Cars tend to drive dangerously fast, while trucks remain slower due to limited manoeuvrability. This study offers insights for operational strategies in dense fog, supporting the use of dynamic warning systems and variable speed limits to reduce unsafe speed variations and potential crashes in low visibility.
format Article
id doaj-art-e133f87dacb440fa8254a49250146a89
institution OA Journals
issn 1335-4205
2585-7878
language English
publishDate 2025-04-01
publisher University of Žilina
record_format Article
series Communications
spelling doaj-art-e133f87dacb440fa8254a49250146a892025-08-20T02:08:15ZengUniversity of ŽilinaCommunications1335-42052585-78782025-04-01272F1F1210.26552/com.C.2025.019csl-202502-0004Impact of Fog Levels on Free-Flow Speeds in Mixed Traffic ConditionsAngshuman PanditAnuj Kishor Budhkar0Department of Civil Engineering, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, IndiaThe effect of fog levels on drivers' free-flow speeds for various vehicles in mixed traffic conditions is examined in this research. Visibility and free-flow speeds from eight highways are simultaneously collected and analyzed. The findings show distinct driver behavior patterns under different fog conditions. In dense fog, small visibility improvements lead to linear speed increases, while in light fog, speeds are mostly unchanged, though drivers maintain higher speeds than in clear conditions. Regardless of a vehicle type, driving patterns in fog are similar, though specific speeds differ. Cars tend to drive dangerously fast, while trucks remain slower due to limited manoeuvrability. This study offers insights for operational strategies in dense fog, supporting the use of dynamic warning systems and variable speed limits to reduce unsafe speed variations and potential crashes in low visibility.https://komunikacie.uniza.sk/artkey/csl-202502-0004_impact-of-fog-levels-on-free-flow-speeds-in-mixed-traffic-conditions.phpvisibilityfree-flow speeddrivers' behaviourmixed traffic
spellingShingle Angshuman Pandit
Anuj Kishor Budhkar
Impact of Fog Levels on Free-Flow Speeds in Mixed Traffic Conditions
Communications
visibility
free-flow speed
drivers' behaviour
mixed traffic
title Impact of Fog Levels on Free-Flow Speeds in Mixed Traffic Conditions
title_full Impact of Fog Levels on Free-Flow Speeds in Mixed Traffic Conditions
title_fullStr Impact of Fog Levels on Free-Flow Speeds in Mixed Traffic Conditions
title_full_unstemmed Impact of Fog Levels on Free-Flow Speeds in Mixed Traffic Conditions
title_short Impact of Fog Levels on Free-Flow Speeds in Mixed Traffic Conditions
title_sort impact of fog levels on free flow speeds in mixed traffic conditions
topic visibility
free-flow speed
drivers' behaviour
mixed traffic
url https://komunikacie.uniza.sk/artkey/csl-202502-0004_impact-of-fog-levels-on-free-flow-speeds-in-mixed-traffic-conditions.php
work_keys_str_mv AT angshumanpandit impactoffoglevelsonfreeflowspeedsinmixedtrafficconditions
AT anujkishorbudhkar impactoffoglevelsonfreeflowspeedsinmixedtrafficconditions