Frequently Asked Questions
The traffic safety committee welcomes your inquiries. Send them to RoxTraffic@msn.com. We may edit for space and clarity.
Are you wondering about:
A study of Roxborough speed humps and bumps was prepared for the Roxborough Park Foundation board in 2005. If you would like to receive a copy of the report send a note to RoxTraffic@msn.com.
The Park's topography is quite unique yet typical of that along the front range of mountains in central Colorado. Due to abundant hills and curving roadways the speed limit in the Park is 20 mph unless otherwise posted. On feeder streets -- Roxborough Drive and Roxborough Drive North -- the limit is posted at 30 mph.
To provide sound recommendations to the RPF board, the traffic safety committee is using a traffic monitor device to collect reliable data on the number and speed of vehicles traveling on discrete sections of roadway in the Park.
Results are summarized for analysis and are used to formulate recommendations. No information on specific vehicles or drivers is gathered by the device.
- Q: What is the estimated cost to the typical Park homeowner for the traffic monitor device (radar based technology) purchased by the Foundation in 2005?
A: Short answer: about $1 per year for the next 5 years.
The initial cost of the traffic monitor to the Foundation was approximately $3500, including initial accessories and mounting hardware. Over the next five years there will likely be additional costs of $1000-$1500 (assumption) for break-away mounting bases, cement, and labor required to mount the unit in various locations throughout the Park.
An estimated cost-of-ownership for the first five years could range as high as $5000. Annual costs to Park homeowners should come in around $1 per year. ($5000/5 years)/ approximately 900+ homeowners paying annual assessments).
The estimated costs do not include any potential residual value of the device in year 6+, nor do they include the volunteer labor donated to download and analyze traffic data collected.Q: What about radiation levels emitted from the traffic monitor device, should I be concerned about possible health effects?
A: Short answer: no, not based on the specifications of the device, the limited time of exposure, and the physical distances involved.
The international standards body known as the International Council on Non-Ionizing Radiation Protection (ICNIRP) has produced guidelines for non-ionizing radiation exposure to both the general public and those who are occupationally exposed.
The traffic monitor device has a Nominal Power Output of 10mW, a Frequency of 24.150 GHz+/-50MHz, and Output Power Density of 0.5mw/cm2 according to the monitor's specifications (see downloadable document description below). With these specifications, the radiation emitted falls below the exposure safety threshold for the general public.To compare police radar with other common household devices such as children's walkie-talkies and conventional mobile phone hand units, please refer to the paper titled "Human Exposure to Radio-Frequency Fields from Police Radars" published by the IEEE.
A downloadable PDF document providing specifications for the traffic monitoring device, as well as other details from ICNIRP, are available by clicking this link. If you have trouble downloading or printing the PDF file, please send an email to RoxTraffic@msn.com.
[More information to come.]
