New roadside machine guesses your age Sports, posted by Oxymo Ron, a resident of another community, on Jan 31, 2008 at 6:18 pm
The county has placed a large display box on wheels beside Danville Blvd in Alamo that guesses your age? Really! I rode to Alamo Plaza the other day with my pal and the machine kindly said "Slow Down" as it guessed my age at 67.
Posted by Hal Bailey, a resident of another community, on Feb 5, 2008 at 3:58 pm
As we all know, the big white box on the side of Danville Blvd is reading the speed of the oncoming vehicles. But which vehicle is it reading? The technology reads the speed of mass and not necessarily the nearest car.
For example, I enjoy slowing down to less than 6 mph so that the machine cannot register my speed. But often, the display will say a speed above 30 mph because it is actually reading mass of an oncoming SUV a half a block behind me.
This is an issue with radar technologies in general. I once was given a ticket in Milpitas for >35 mph when is moving slowly behind a lady entering a school parking lot. The issue was an oncoming truck well behind me that had greater mass for radar detection.
Thus, the white box might as well guess my age because it has an equal chance to be accurate.
Posted by Carl Peyton, a resident of another community, on Feb 5, 2008 at 4:04 pm
Posted at the request of the author
Hal, as a commuter to Milpitas, I have had the experience you outlined with their "juiced" radar guns. In a case a few years back, my employee demanded the gun for independent calibration tests to be used in court. Milpitas refused to surrender the gun or any certification of the gun's accuracy. Her ticket was some how dismissed because the officer and the gun did not show up in court.
I later found out from the gun company that the guns can be "juiced" to provide false, higher readings.
Posted by Kevin Davis, a resident of another community, on Feb 6, 2008 at 12:29 pm
Posted by permission of the author
Problems with radar guns:
Although radar is an effective tool to acquire an object's speed, there are problems with it. For speed to be accurately calculated, the object whose speed is desired ideally should be the only moving object in the beam of the radar. If this is not the case, as in a police officer monitoring speed on a stretch of busy road, more articulation is needed in testifying to a particular vehicle's speed. The angle in which the object is in relation to the radar source can also affect the reading. This phenomenon includes angles on a horizontal and vertical plane and is known as the Cosine Effect. It is suggested that interference in the RADAR band by cellular phones, transmitters of other kinds, power wires, signs and even stationary walls can create erroneous readings. This is not taken into account when a photo RADAR is used and numerous discrepancies can creep in.
In most cases, on very busy roads, RADAR GUNS have a better chance of guessing your AGE.
Posted by Hal Bailey, a resident of another community, on Feb 12, 2008 at 9:23 am
We can conclude that TRAFFIC is a danger to Alamo and Danville Blvd invites and creates that danger. We can conclude that speed is not the issue as much it is the willingness of TRAFFIC to stop for pedestrians and local access by vehicles to our business district.
In this exchange, we illustrated that speed detection and inforcement using radar devices is selective and not the solution. In other forum discussions, we noted that the changes to Danville Blvd in the business district have only increased TRAFFIC and expanded the dangers to pedestrians and local shopping access.
Our humor illustrated the attitudes of through-traffic and the result of speeds beyond any speed limit or control. We now are presented with the requirement to remove the through-traffic and achieve access to the business district as our primary goal.
Are there any further thoughts?
Posted to Iron Horse neighbors via firstname.lastname@example.org
Posted by Iron Horse neighbors, a resident of another community, on Feb 12, 2008 at 11:45 am
Reposted at the request of the authors
Public references: AIA Transportation contact, Access www.alamoca.org
Contacting the AIA: Do you have a question or issue you wish to send to the AIA? Your questions are best handled by the related AIA Transportation committee: Mr. Michael Gibson, email@example.com, Chair. Mike is also a San Ramon Valley Regional Planning Commissioner and Committee Member of Alamo Incorporation Movement, www.alamoinc.org.
To provide your suggestions and advisory to Contra Costa County District 3 Supervisor, contact Ms. Gina Ferretti, firstname.lastname@example.org. You may wish to meet Ms. Ferretti at the Alamo Community Council, 5PM, St. Valentines Day, Hap Magee Park, Swain Cottage (Danville).