Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Survey Safety01:28

Survey Safety

474
Surveying near highways, rough terrain, or power lines involves significant risks. Working along highways is particularly dangerous and requires the use of warning signs and flagmen. It is safest to avoid working directly on roads and use offsets whenever possible. When highway work is unavoidable, it must follow all safety guidelines. Surveyors should wear bright clothing, such as orange reflective vests, to ensure visibility to motorists, coworkers, and hunters. In construction zones, wearing...
474
Elevation of Intermediate Points on Vertical Curves01:20

Elevation of Intermediate Points on Vertical Curves

339
Vertical curves are essential in roadway design because they provide smooth transitions between varying roadway grades. Designing vertical curves involves calculating intermediate elevations and identifying the curve's highest or lowest point, which is essential for optimal roadway performance.Intermediate elevations on a vertical curve are determined using the tangent offset method. This method considers the initial elevation at the start of the curve, the grades, and the curve's geometry. The...
339
Sight Distance in a Vertical Curve01:29

Sight Distance in a Vertical Curve

479
Sight distance on vertical curves is critical in roadway design. It ensures drivers can see far enough ahead to identify and respond to hazards effectively. This directly impacts safety, driver comfort, and the overall efficiency of the transportation network.Vertical curves are classified into crest and sag curves based on their geometry. For crest curves, sight distance is determined by the line of sight between a driver's eye and a small object on the road's surface. Design parameters for...
479
Applications of GIS: Disaster Management and Emergency Response01:29

Applications of GIS: Disaster Management and Emergency Response

677
Geographic Information System (GIS) technology is essential for risk identification, action prioritization, and resource optimization in critical situations like flooding and earthquakes. By integrating spatial and demographic data, GIS provides a comprehensive framework for emergency response.GIS integrates data layers, like rainfall intensity, topography, elevation profiles, and river levels, to model high-risk flood zones. These layers assess areas susceptible to flooding based on their...
677
Introduction to Vertical Curves01:24

Introduction to Vertical Curves

738
Vertical curves are parabolic transitions that connect different grades on highways and railroads, ensuring a smooth alignment between back and forward tangents. The back tangent represents the initial grade, while the forward tangent defines the subsequent grade. These curves can be symmetrical, with equal tangent lengths, or nonsymmetrical, with varying lengths. The key points defining a vertical curve include the Point of Vertical Intersection (P.V.I.), where the tangents meet; the Point of...
738
Cavity Drainage and Flashings in Masonry walls01:20

Cavity Drainage and Flashings in Masonry walls

601
Typically, a cavity wall consists of two wythes separated by a gap of at least 2 inches, which may contain insulation while still maintaining a minimum clear space of 1 inch to facilitate adequate drainage. Advanced methods like the insertion of a continuous drainage mat can further reduce this space while ensuring effective moisture expulsion.
Weep holes, strategically placed at the base of the cavity, are critical for draining accumulated water. These openings are created by leaving head...
601

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Dystrophia Smolandiensis is characterized by a novel NQO1 variant and a distinct phenotype from COL17A1-associated epithelial recurrent erosion dystrophy.

Acta ophthalmologica·2026
Same author

Drug resistant epilepsy driven by <i>RHEB</i> gene variants - Current evidence and a novel report of a paedatric case.

Epilepsy & behavior reports·2026
Same author

The genomic medicine center Karolinska 10-year report on genome sequencing for rare diseases and a strategy for stepwise clinical implementation.

Genome medicine·2026
Same author

Nallo: a Nextflow pipeline for comprehensive human long-read genome analysis.

Bioinformatics (Oxford, England)·2026
Same author

Nordic survey on practice of neurosurgical management of craniopharyngioma in children.

Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery·2026
Same author

Current Management of Craniosynostosis: A Nordic Pediatric Neurosurgery Network Study.

The Journal of craniofacial surgery·2026

Related Experiment Video

Updated: Apr 4, 2026

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation
11:41

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation

Published on: February 1, 2020

21.1K

Variable Message Signs for road tunnel emergency evacuations.

Enrico Ronchi1, Daniel Nilsson1, Henric Modig2

  • 1Department of Fire Safety Engineering, Lund University, Lund, P.O. Box 118, SE-221 00 Lund, Sweden.

Applied Ergonomics
|September 12, 2015
PubMed
Summary
This summary is machine-generated.

This study recommends optimal Variable Message Sign (VMS) designs for road tunnel evacuations, emphasizing larger signs with flashing lights and specific color-coded messages for improved way-finding during emergencies.

Keywords:
Emergency evacuationNotificationSystem designTheory of AffordancesTunnel evacuationVariable Message SignWay-finding

More Related Videos

Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research
07:15

Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research

Published on: December 18, 2020

5.2K
A Networked Desktop Virtual Reality Setup for Decision Science and Navigation Experiments with Multiple Participants
06:28

A Networked Desktop Virtual Reality Setup for Decision Science and Navigation Experiments with Multiple Participants

Published on: August 26, 2018

6.4K

Related Experiment Videos

Last Updated: Apr 4, 2026

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation
11:41

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation

Published on: February 1, 2020

21.1K
Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research
07:15

Tactile Vibrating Toolkit and Driving Simulation Platform for Driving-Related Research

Published on: December 18, 2020

5.2K
A Networked Desktop Virtual Reality Setup for Decision Science and Navigation Experiments with Multiple Participants
06:28

A Networked Desktop Virtual Reality Setup for Decision Science and Navigation Experiments with Multiple Participants

Published on: August 26, 2018

6.4K

Area of Science:

  • Human-Computer Interaction
  • Transportation Engineering
  • Cognitive Psychology

Background:

  • Effective way-finding is critical during road tunnel evacuations.
  • Variable Message Signs (VMS) are essential tools for guiding individuals in emergencies.
  • Existing VMS designs may not be optimized for the unique challenges of tunnel evacuations.

Purpose of the Study:

  • To investigate and recommend optimal design characteristics for Variable Message Signs (VMS) used in road tunnel emergency evacuations.
  • To apply the Theory of Affordances to guide VMS design for way-finding.
  • To evaluate participant preferences for different VMS features.

Main Methods:

  • A preliminary evaluation of 11 Variable Message Sign (VMS) systems.
  • An affordance-based within-subject stated-preference questionnaire administered to 62 participants.
  • Analysis of VMS features including sign size, flashing lights, color schemes, and message coding (text/pictograms).

Main Results:

  • Larger Variable Message Signs (VMS) performed better than smaller ones.
  • The use of flashing lights significantly improved VMS effectiveness.
  • A combination of a green emergency exit pictogram and amber text was the preferred message coding.

Conclusions:

  • Optimized VMS design can significantly enhance way-finding during road tunnel evacuations.
  • Key design elements include larger sign size, flashing lights, and specific color-coded pictograms and text.
  • Future VMS development should incorporate these findings to improve safety and efficiency in emergency situations.