Amazines Free Article Archive
www.amazines.com - Sunday, February 23, 2020
Read about the most recent changes and happenings at Amazines.com
Log into your account or register as a new author. Start submitting your articles right now!
Search our database for articles.
Subscribe to receive articles emailed straight to your email account. You may choose multiple categories.
View our newest articles submitted by our authors.
View our most top rated articles rated by our visitors.
* Please note that this is NOT the ARTICLE manager
Add a new EZINE, or manage your EZINE submission.
Add fresh, free web content to your site such as newest articles, web tools, and quotes with a single piece of code!
Home What's New? Submit/Manage Articles Latest Posts Top Rated Article Search
Google
Subscriptions Manage Ezines
CATEGORIES
 Article Archive
 Advertising (133332)
 Advice (161024)
 Affiliate Programs (34736)
 Art and Culture (73705)
 Automotive (145681)
 Blogs (75077)
 Boating (9841)
 Books (17218)
 Buddhism (4125)
 Business (1328753)
 Business News (426329)
 Business Opportunities (366276)
 Camping (10962)
 Career (72739)
 Christianity (15846)
 Collecting (11637)
 Communication (115053)
 Computers (241957)
 Construction (39000)
 Consumer (49681)
 Cooking (17062)
 Copywriting (6568)
 Crafts (18205)
 Cuisine (7539)
 Current Affairs (20394)
 Dating (45784)
 EBooks (19687)
 E-Commerce (48206)
 Education (185272)
 Electronics (83503)
 Email (6395)
 Entertainment (159848)
 Environment (28940)
 Ezine (3039)
 Ezine Publishing (5446)
 Ezine Sites (1550)
 Family & Parenting (110907)
 Fashion & Cosmetics (196392)
 Female Entrepreneurs (11842)
 Feng Shui (130)
 Finance & Investment (310308)
 Fitness (106244)
 Food & Beverages (62879)
 Free Web Resources (7938)
 Gambling (30230)
 Gardening (25115)
 Government (10515)
 Health (629701)
 Hinduism (2205)
 Hobbies (44048)
 Home Business (91562)
 Home Improvement (251376)
 Home Repair (46148)
 Humor (4826)
 Import - Export (5453)
 Insurance (45134)
 Interior Design (29562)
 International Property (3485)
 Internet (190991)
 Internet Marketing (146348)
 Investment (22827)
 Islam (1167)
 Judaism (1356)
 Law (80542)
 Link Popularity (4593)
 Manufacturing (20842)
 Marketing (98794)
 MLM (14136)
 Motivation (18213)
 Music (27006)
 New to the Internet (9480)
 Non-Profit Organizations (4048)
 Online Shopping (129617)
 Organizing (7803)
 Party Ideas (11856)
 Pets (38078)
 Poetry (2234)
 Press Release (12676)
 Public Speaking (5618)
 Publishing (7523)
 Quotes (2407)
 Real Estate (126634)
 Recreation & Leisure (95301)
 Relationships (87564)
 Research (16160)
 Sales (80325)
 Science & Technology (110228)
 Search Engines (23463)
 Self Improvement (153103)
 Seniors (6233)
 Sexuality (35943)
 Small Business (49288)
 Software (82996)
 Spiritual (23468)
 Sports (116093)
 Tax (7658)
 Telecommuting (34068)
 Travel & Tourism (307556)
 UK Property Investment (3121)
 Video Games (13428)
 Web Traffic (11729)
 Website Design (56833)
 Website Promotion (36575)
 World News (1000+)
 Writing (35777)
Author Spotlight
MANMOHAN SINGH

Digital marketing professional with 8 years of experience. A good listner, Stratgist and fun loving ...more
DELORES KEEPER

Delores Keeper has been playing chess for over 50 years. Some tournaments, some teams (when she was ...more
ADRIAN JOELE

I have been involved in nutrition and weight management for over 12 years and I like to share my kn...more
ELLIOT CHANG

Financial analyst and author writing on economy and business. ...more
ANISH SAH

My Name is Anish Sah, I am an Internet Marketing and SEO Expert, Social Media Guru and young Entrepr...more


The first key of designing tunnel lighting—brightness by floodlights lsd





The first key of designing tunnel lighting—brightness by
Article Posted: 06/25/2013
Article Views: 92
Articles Written: 370
Word Count: 495
Article Votes: 0
AddThis Social Bookmark Button

The first key of designing tunnel lighting—brightness


 
Science & Technology,Writing,Blogs
Highway tunnel lighting has its own characteristics, which is different from ordinary road lighting. the design of the following points should needed to be considered and paid attention to: 1.the road should have a certain level of brightness 2 the tunnel wall should have a certain level of brightness 3 design speed, traffic volume, route alignment, and many other factors 4 Considering the driving safety and comfort and other aspects to determine the level of illumination 5 human visual adaptability, especially the tunnel entrance and outlet sections, etc. 6 the tunnel needs lighting daytime, but the problems of lighting during the day is more complicated than at night. How to achieve energy savings and improve lighting effects and ensure traffic safety and comfort in the tunnel lighting is usually available from the following aspects to be considered:

(1) Brightness As the brightness of the day is much higher than outside, therefore when the driver drove into the tunnel, there is a certain visual adaptation time before you can see the situation inside the tunnel, a phenomenon called "adaptive hysteresis," if there is no proper transition, it will produce a black hole phenomenon, so that the driver temporarily lost normal visual function, which will bring to certain security risks. Black hole phenomenon is not only occurring before entering the tunnel vision problems, but also the tunnel lighting is the most important issue. The tunnel lighting is usually divided into the entrance tunnel lighting, interior lighting and exit lighting. Wherein the brightness of tunnel entrance lighting at daytime is determined by the brightness outside the tunnel, the speed, the view of the entrance field and the length of the tunnel. Threshold section is to eliminate the "black hole" phenomenon, the illumination levels of the transition section further gradually decreased so as to provide the driver with visual dark adaptation time.

(2) brightness uniformity Good visual function not only requires a good average brightness, but average luminance on the road is not much different with the minimum brightness. If the brightness of the view field is too large different, bright parts will form a glare source, and the light and dark will bring some changes in stroboscopic effect, thereby affecting vision, human visual effect will be significantly worse, while the visual fatigue will increase.

Overall brightness uniformity U0 is the minimum brightness and the average ratio of brightness on the road inside the tunnel section, vertical uniformity axis U1 is the smallest brightness and maximum surface brightness ratio in the driveway surface. If the road surface continuously, repeatedly emerges bright bands and dark bands, namely "zebra effect", the users travelling in this lane road will feel very irritable. This issue relates to human psychology, but it can also endanger road safety, the longitudinal uniformity is mainly used to evaluate the "zebra" effect size.

Know more LED tunnel light and why its brightness is suitable for tunnel lighting,you can browse www.lead-lighting.com/led-tunnel-light/led-tunnel-light-cl3-60w.htm to learn about its parameters and scope.

Related Articles - surface brightness, visual effect, road safety, dark adaptation, black hole, road surface, lighting, LED tunnel light, effect,

Email this Article to a Friend!

Receive Articles like this one direct to your email box!
Subscribe for free today!

 Rate This Article  
Completely useless, should be removed from directory.
Minimal useful information.
Decent and informative.
Great article, very informative and helpful.
A 'Must Read'.

 

Do you Agree or Disagree? Have a Comment? POST IT!

 Reader Opinions 
Submit your comments and they will be posted here.
Make this comment or to the Author only:
Name:
Email:
*Your email will NOT be posted. This is for administrative purposes only.
Comments: *Your Comments WILL be posted to the AUTHOR ONLY if you select PRIVATE and to this PUBLIC PAGE if you select PUBLIC, so write accordingly.
 
Please enter the code in the image:



 Author Login 
LOGIN
Register for Author Account

 

Advertiser Login

 

ADVERTISE HERE NOW!
   Limited Time $60 Offer!
   90  Days-1.5 Million Views  

 

Great Paranormal Romance


STEPHEN BYE

Steve Bye is currently a fiction writer, who published his first novel, ‘Looking Forward Through The...more
GENE MYERS

Author of four books and two screenplays; frequent magazine contributor. I have four other books "in...more
LAURA JEEVES

At LeadGenerators, we specialise in content-led Online Marketing Strategies for our clients in the t...more
STEVERT MCKENZIE

Stevert Mckenzie, Travel Enthusiast. ...more
SUSAN FRIESEN

Susan Friesen, founder of the award-winning web development and digital marketing firm eVision Media...more
LANCE CHAPMAN

An experienced, resourceful and highly motivated IT professional, with a proven record of success in...more
MICHAEL BRESCIANI

Rev Bresciani is the author of two Christian books. One book is an important and concisely written b...more
TIM FAY

I am not a writer nor am I trying to become a writer. I am an average person with average intelligen...more
KIRAN KAUR

Kiranpreet (Kiran) Kaur, D.D.S., who received her Doctor of Dental Surgery degree from the prestigio...more
STEVE BURGESS

Steve Burgess is a freelance technology writer, a practicing computer forensics specialist as the pr...more

HomeLinksAbout UsContact UsTerms of UsePrivacy PolicyFAQResources
Copyright © 2020, All rights reserved.
Some pages may contain portions of text relating to certain topics obtained from wikipedia.org under the GNU FDL license