Navigation Links
Yellow lights mean drivers have to make right choice -- if they have time
Date:9/11/2012

A couple of years ago, Hesham Rakha misjudged a yellow traffic light and entered an intersection just as the light turned red. A police officer handed him a ticket.

"There are circumstances, as you approach a yellow light, where the decision is easy. If you are close to the intersection, you keep going. If you are far away, you stop. If you are almost at the intersection, you have to keep going because if you try to stop, you could cause a rear-end crash with the vehicle behind you and would be in the middle of the intersection anyway," said Rakha, professor of civil and environmental engineering at Virginia Tech.

He's not trying to defend his action. Rakha, director of the Center for Sustainable Mobility (www.vtti.vt.edu/csm.php) at the Virginia Tech Transportation Institute (www.vtti.vt.edu), is describing his research. Since 2005, his research group has been studying drivers' behaviors as they approach yellow lights. Their goal is to determine signal times for intersections that are safer and still efficient.

If a driver decides to stop when instead of proceeding, rear-end crashes could occur. If a driver proceeds instead of stopping, collisions with side street traffic could occur. Although observation-based research shows that only 1.4 percent of drivers cross the stop line after the light turns red, more than 20 percent of traffic fatalities in the United States occur at intersections.

"If the yellow time is not set correctly, a dilemma zone is imminent," Rakha said.

"The dilemma zone occurs when the driver has no feasible choice," he said. "In other words the driver can neither stop nor proceed through the intersection before the light turns red. This can also occur if the approaching vehicle is traveling faster than the posted speed limit and/or if the driver's perception and reaction time is longer t
'/>"/>

Contact: Sherri Box
sbox@vtti.vt.edu
540-231-1549
Virginia Tech
Source:Eurekalert  

Page: 1 2 3 4

Related medicine news :

1. Green biased yellow fever swept through Irish Immigrants in 19th century US
2. Lights off? International experts call attention to dangers of exposure to light at night
3. Genetics Society of Americas Genetics journal highlights for September 2012
4. AAO-HNSF 2012 daily miniseminars highlights
5. AAO-HNSF 2012 new oral research daily highlights
6. Deadly outbreak of West Nile virus highlights urgent need for more research, funding
7. JAAOS study highlights success of nerve transfer surgery
8. New influenza virus from seals highlights the risks of pandemic flu from animals
9. Clinical news alert: Journal of the American Academy of Orthopaedic Surgeons May highlights
10. Study highlights need for coordination of care in stage 2 and 3 rectal cancer treatment
11. Triple negative breast cancer symposium highlights current advances
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Yellow lights mean drivers have to make right choice -- if they have time
(Date:7/25/2014)... (HealthDay News) -- Seniors are more easily distracted during ... study finds. "Almost any type of memory test ... of 25 on," study co-author Randi Martin, professor of ... release. However, Martin said, this study shows that ... older adults compared with younger adults. The study ...
(Date:7/25/2014)... 2014 As reported by Wood TV 8 ... (7/20), Michigan has seen a nearly 500-person increase in heroin ... count was 271 between 1999 and 2002, the toll increased ... that, like other states, drug users in Michigan have turned ... pills. He compared the price of both substances, noting that ...
(Date:7/25/2014)... Florida Hospital and MOSI officially announced a ... years to come and make a difference in the Tampa ... dollar check to provide the support needed to keep the ... to transform the IMAX Dome Theatre from film to a ... IMAX Dome Theatre in the state of Florida, and it ...
(Date:7/25/2014)... (PRWEB) July 25, 2014 Merrill ... of technology-enabled services for the financial, legal, healthcare ... virtual data room business, Merrill DataSite, has been ... presented by GrowthBusiness at the M&A Awards 2014 ... the achievements of entrepreneurs, management teams, advisors and ...
(Date:7/25/2014)... A new study conducted by the Hospital for ... of all children in the survey under the age of four ... 2,505 children during the years of 2011 and 2013. The children ... The final result was that about two out of every five ... were from lower-income families and were of East Asian heritage. , ...
Breaking Medicine News(10 mins):Health News:Distractions Seem More Troublesome With Age 2Health News:Rise in Heroin Use, Overdose Deaths in Michigan 2Health News:Florida Hospital Donates a Two Million Dollar Transformational Gift to the Museum of Science and Industry (MOSI) 2Health News:Florida Hospital Donates a Two Million Dollar Transformational Gift to the Museum of Science and Industry (MOSI) 3Health News:Florida Hospital Donates a Two Million Dollar Transformational Gift to the Museum of Science and Industry (MOSI) 4Health News:Merrill DataSite Recognized as “Technology Provider of the Year” by GrowthBusiness at the M&A Awards 2014 Event 2Health News:North York Dental Provides Services to Toronto Children in Light of Growing Demand 2Health News:North York Dental Provides Services to Toronto Children in Light of Growing Demand 3
... and, Marilyn Sargent of Success Design International, to offer a new course ... ... Jan. 22 The business of,life coaching takes another step forward with ... art and science of personal achievement. It is an art,because the way ...
... a protein that normally regulates muscle mass, and watch your ... idea to people with muscle-wasting diseases such as muscular dystrophy, ... weaker with age. Drugs that restrict the protein myostatin, which ... study, but not on the market, for some medical conditions. ...
... Ohio Consumers who pick up their prescription medications ... own safety in the name of convenience. , A ... with drive-through windows believe the extra distractions associated with ... even dispensing errors. , The surveyed pharmacists reported ...
... cancer who were treated with male hormone suppression therapy ... moderate to high levels of other illnesses did not ... January 23 issue of JAMA. , Several studies have ... therapy (AST) is combined with external beam radiation therapy ...
... exercise capacity reduces the risk of death in African-American ... the American Heart Association. , The government-supported Veterans Affairs ... to assess the link between fitness and mortality. , ... moderate levels of physical activity like brisk walking ...
... Marcy Leger Joins Agency as Executive Vice President, Managing ... Life, a leading healthcare,communications network, announced that Marcy Leger ... of Euro RSCG Life LM&P New,York, as a result ... to David Paragamian, Partner, President of Euro RSCG Life ...
Cached Medicine News:Health News:Spencer Institute Offers a Home-Training Course for Hemispheric Integration & Neuro-linguistics Coach Certification 2Health News:Drugs to bulk up muscles may make injuries more likely 2Health News:Drugs to bulk up muscles may make injuries more likely 3Health News:Pharmacists believe drive-through windows contribute to delays, errors 2Health News:Pharmacists believe drive-through windows contribute to delays, errors 3Health News:Pharmacists believe drive-through windows contribute to delays, errors 4Health News:Combination therapy improves survival for certain prostate cancer patients 2Health News:Daily exercise dramatically lowers men's death rates 2Health News:Daily exercise dramatically lowers men's death rates 3Health News:Euro RSCG Life LM&P Announces Growth of Leadership Team 2
(Date:7/25/2014)... 25, 2014 GrowBLOX Sciences, Inc. (OTCQB: GBLX) is ... Understanding ("MOU") with LaurelCo, LLC, an Illinois ... both cultivation and dispensary medical marijuana licenses in the state ... GBLX will acquire a 20% equity interest in LaurelCo, LLC ... growing chambers, as well as all technology related to ...
(Date:7/25/2014)... July 25, 2014  Acsis Inc., the market ... serialization solutions, has recently posted an article, ... current and future needs for companies, extended supply ... supply chain model no longer work today.  The ... the growth of mobile technology, machine to machine ...
(Date:7/25/2014)... , July 25, 2014 IBM (NYSE: ... healthcare sciences publisher, launched a library of mobile ... as cancer and heart disease. Healthcare providers using a ... to deliver better patient care. Mobile device ... relying on smartphones and tablets to access the information ...
Breaking Medicine Technology:GrowBLOX Sciences, Inc. Partners with LaurelCo, LLC to Obtain Licenses to Cultivate and Dispense Medical Marijuana in Illinois 2GrowBLOX Sciences, Inc. Partners with LaurelCo, LLC to Obtain Licenses to Cultivate and Dispense Medical Marijuana in Illinois 3Acsis Addresses Questions on the Modern Supply Chain 2Healthcare Sciences Publisher PLM and IBM Speed Access to Medical Information to Deliver Better Patient Care with Mobile 2Healthcare Sciences Publisher PLM and IBM Speed Access to Medical Information to Deliver Better Patient Care with Mobile 3Healthcare Sciences Publisher PLM and IBM Speed Access to Medical Information to Deliver Better Patient Care with Mobile 4
... rate for psychiatric medication spending has declined significantly, according ... Reuters (Healthcare) and the Substance Abuse and Mental Health ... ) The paper, which appears in the ... , underlines falling prices of psychiatric medications as one ...
... 2012 ThermoGenesis Corp. (NASDAQ: KOOL ), ... process and store adult stem cells, today provided updates ... (Res-Q) system, a point-of-care platform designed for the preparation ... at the Seventh International Conference on Cell Therapy for ...
Cached Medicine Technology:Psychiatric Medication Spending Growth Slows, According to New Thomson Reuters Research 2Psychiatric Medication Spending Growth Slows, According to New Thomson Reuters Research 3ThermoGenesis Provides Update on Res-Q® Clinical Evaluations at Leading Stem Cell Therapy Conference 2ThermoGenesis Provides Update on Res-Q® Clinical Evaluations at Leading Stem Cell Therapy Conference 3ThermoGenesis Provides Update on Res-Q® Clinical Evaluations at Leading Stem Cell Therapy Conference 4
... have a positive and negative inoculated well, ... these slides, perform QC and sample staining ... education and training programs by testing QC ... on one slide! KWIK-QC slides contain the ...
Microbiology QC Slides come with one or two droplets of an air-dried and methanol-fixed microorganism, or a single smear containing a designated microorganism population....
... Plate Capability The Equalizer 384 includes ... and equal tip spacing, choice of two software ... addition, this model allows you to evenly space ... accessing many gels and for use with 384 ...
Each slide contains a high yield of concentrated C. parvum oocysts within the positive control well. A negative control well is also included....
Medicine Products: