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2011-06-28_PWETC_AgendaPacket
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2011-06-28_PWETC_AgendaPacket
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6/28/2011 9:08:16 AM
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Commission/Authority Name
Public Works Commission
Commission/Committee - Document Type
Agenda/Packet
Commission/Committee - Meeting Date
6/28/2011
Commission/Committee - Meeting Type
Regular
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the exit lane to remain unimpeded. <br />Speed Humps <br />Speed humps differ from speed bumps in that they are from three to four inches <br />high at the highest point and are much longer than bumps. We currently use 12 <br />foot long humps. They can be driven over at about 15 miles per hour without the jolt <br />that bumps give. At higher speeds they are very uncomfortable and may cause the <br />vehicle to bottom out. The design of Evanston's humps follows the recommended <br />guidelines published by the Institute of Transportation Engineers. <br />Speed Bumps <br />Speed bumps are not recommended for use on any streets, but City Council has <br />approved their use in alleys. Two thirds of the residents along the alley must <br />support the bumps. These devices are considered in the category of neighborhood <br />traffic control and are included in this program at no charge to the residents along <br />the alley. <br />Speed Monitoring Options <br />Traditional Police Enforcement <br />Police enforcement is an essential part of any traffic control plan and it is <br />recommended that it be continued. It can be used to enforce new traffic control <br />regulations and to monitor existing regulations. It must be recognized that it is <br />impossible to have officers monitor each posted speed zone every day, so other <br />techniques for speed monitoring are necessary and are discussed in the next <br />section. <br />Speed Monitor <br />This is a trailer- mounted unit that has radar and a speed display. It shows the <br />speed of the vehicle to the driver (SPEED LIMIT XX YOUR SPEED IS XX MPH) <br />and has been shown to reduce speeds, even if no police are in view. These units <br />be used on any type of street. <br />Neighborhood Speed Watch <br />This technique involves measuring the speed of traffic on neighborhood streets and <br />recording the license plates of speeding vehicles. Plate numbers are turned over to <br />the Police and the owners are written letters advising them to be more careful and <br />respect traffic laws. The speed measuring is done by using radar units borrowed <br />from the Traffic Bureau of the Police Department. It is relatively inexpensive, but <br />does involve time to obtain registration information and produce the letters. Also, <br />the residents involved in data collection must be trained to use the equipment so <br />that accurate results are obtained. The Traffic Engineering Division also has a <br />program similar to this, but it does not involve citizens. In this program, license <br />plates of violators of various types of regulations are recorded (if time allows during <br />11 <br />
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