Fri01302015

News

Foothill to offer four-year degree: Foothill aims to launch dental hygiene degree in fall 2016

Foothill to offer four-year degree: Foothill aims to launch dental hygiene degree in fall 2016


Ellie Van Houtte/Town Crier
Students enrolled in Foothill College’s two-year dental hygiene program, above, can soon earn a four-year bachelor’s degree for approximately $10,000.

Foothill-De Anza Community College District Chancellor Linda M. Th...

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Schools

Freestyle hosts exhibition at Computer Science Museum

Freestyle hosts exhibition at Computer Science Museum


Traci Newell/Town Crier
Mountain View High junior and Freestyle Academy student Radika Gupta, right, works with a fellow student during a WebAudio course this month.

For three periods a day, a small subset of students from Los Altos and Mountain Vi...

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Community

Museum explores Stanford, Valley connection

Museum explores Stanford, Valley connection


Courtesy of Julie Rose
The Los Altos History Museum’s “Symbiotic Superstars” event drew a crowd including, from left, “The Lure & the Legends” creator Nan Geschke, Stanford President John L. Hennessy, historian Leslie Berlin and Adobe Systems c...

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Comment

Good compromise on PE exemptions: Editorial

While “Deflategate” captures the national sports headlines, the local issue of physical education class exemptions for freshmen seems a much worthier sports topic for discussion.

The Mountain View Los Altos Union High School District Board of Truste...

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Special Sections

Your Home Brief

Filoli hosts bird exhibition

Filoli kicks off the 2015 season of art exhibitions in its Visitor and Education Center with “The Birds of America: Audubon Collection,” a selection of prints from Filoli’s Permanent Collection, Feb. 10...

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Business

Wine & beer lounge coming to First Street

Wine & beer lounge coming to First Street


Ellie Van Houtte/Town Crier
The new wine and beer lounge Honcho heads to First Street, with a spring opening anticipated.

A cocktail lounge proposed for First Street has cleared its first hurdle – the Los Altos Planning and Transportation Comm...

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Books

"Fearless Genius" photos chart Silicon Valleys brain trust


Not every book needs pages and pages of words to tell a story – some do it through pictures.

“Fearless Genius: The Digital Revolution in Silicon Valley, 1985-2000” (Atria Books, 2014) by Doug Menuez features more than 100 photographs Menuez to...

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People

RUBY DOSHIM LAI

Ruby Doshim Lai was born on July 26, 1929 and passed away at home on January 10, 2015. A resident of Los Altos for over 50 years, Ruby is survived by her husband Bill; children Gwen, Tracy and Allyn; and grandchildren Kiyoshi and Misa.

Born on Mott ...

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Travel

Cuban photographer slated to appear at Foothill

Cuban photographer slated to appear at Foothill


Courtesy of Raúl Cañibano
Cuban photographer Raúl Cañibano is set to appear at Foothill College tonight. His work – including the image “Series: Guajira’s Land, Viñales, 2007,” right – is on display at the KCI Gallery t...

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Stepping Out

'Betrayal' at Pear

'Betrayal' at Pear


Ray Renati/Special to the Town Crier
The cast of Pear Avenue Theatre’s “Betrayal” includes Maryssa Wanlass, from left, Fred Pitts and William J. Brown III.

The Pear Avenue Theatre presents Harold Pinter’s investigation of modern relationships, “...

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Magazine

Tracing history on foot: Hidden Villa’s long hike

Tracing history on foot: Hidden Villa’s long hike


Campers on Hidden Villa’s Sierra Backpacking Trip study historical photos to measure how the land has changed and alternate serving as student leaders who guide the route of their three-week trek.

Amid the high-tech camps and programs of a Bay Area ...

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Speed limits: A lesson in physics: Other Voices

Note: The Los Altos City Council voted Aug. 20 to retain the city’s current speed limits. The following piece was written before that action, but the subject matter remains relevant – thus its inclusion here.

It makes sense for the city of Los Altos to periodically reconsider speed limits on local streets. I applaud the use of the extensive data generated by the recent traffic survey. However, using data to make traffic safety decisions without considering the laws of physics can be dangerous.

The distance a car travels from the moment the driver decides to brake to the point of stopping is not determined by a simple ratio involving the speed. The car travels some distance while the driver is reacting to the obstacle in the road, before the brakes are applied. The car travels an additional distance while braking that depends on the square of the initial velocity. The combination of these two distances is the stopping distance.

Using typical numbers, a car traveling 30 mph will have a stopping distance of 109 feet. If the speed of the car is increased by 17 percent to 35 mph, the stopping distance increases to 136 feet, a 25 percent increase. The proposed 40 percent increase in the speed limit on Grant Road between Homestead Road and Grant results in a 60 percent increase in stopping distance. This nonlinear relationship between speed and stopping distance is not intuitive for drivers. It results in a dangerous hazard for pedestrians, cyclists, wayward animals and other drivers on residential streets.

Physics also sheds light on the relationship between vehicle speed and pedestrian deaths. The energy of the collision depends on the square of the speed. This explains why 5 percent of pedestrians struck by a car going 20 mph are killed, while 45 percent struck by a car going 30 mph are killed. Increasing speed increases the likelihood of collisions with pedestrians and the chances of a fatality from the collision.

I understand the reasoning behind using the average speed of traffic to set speed limits. It prevents the creation of speed traps that can punish safe drivers. However, the residential character of the streets being considered for an increase should trump the convenience of the drivers using them.

If the current speed limits had been enforced and traffic-calming measures implemented prior to the survey, the average speeds would have been lower. We should not allow scofflaws that value a few seconds of their own time more than the safety of children crossing the street to set the speed limit.

The city of Los Altos has a problem regarding pedestrian safety. According to the California Office of Traffic Safety, we ranked 13th out of 93 similar cities for pedestrian injury accidents, and sixth for cyclists. This is unacceptable for a community that characterizes itself as a “village.”

I urge members of the Los Altos City Council to use their discretion to keep the current posted speed limits, as they wisely did in 2007. They should instead use the traffic survey data to develop measures to slow drivers down. This would be a decision based on the data and sound physics.

Daniel Burns is a Los Altos resident who teaches Advanced Placement Physics at Los Gatos High School.

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