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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/Committee
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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Traffic Calming Measure <br />Estimated Cost <br />Curb extension and street narrowing <br />$9,000 $15,000 <br />Traffic circle constructed at intersection within existing curblines <br />$5,000 $20,000 <br />Mid -block island <br />$8,000 $15,000 <br />Speed hump /table <br />$2,500/$5,000 <br />Speed bump (to be used only in alleys) <br />$500 <br />Diagonal diverter <br />$40,000 <br />Partial intersection closure <br />$40,000 <br />Cul -de -sac <br />$120,000 <br />Project Phase <br />City Share <br />Resident Share <br />Traffic Study of Neighborhood <br />100% <br />Basic Measures (e.g. signage, striping, education) <br />100% <br />Engineering Design and Management of Physical Measures <br />100% <br />Construction of Physical Measures <br />100% <br />Future Maintenance of the Installed Physical Measures <br />100% <br />City of Des Plaines Neighborhood Traffic Management Policy <br />FUNDING <br />When routine maintenance on streets is deferred, the deterioration of the street accelerates, <br />resulting in the need for a premature and very expensive full reconstruction of the street. <br />Therefore, the first priority of the City's capital improvement program is to maintain the condition <br />of the existing streets. <br />There is often insufficient funding to keep up with this primary task of maintenance. As such there <br />will necessarily be a limited amount of City funding available for projects to modify the streets for <br />traffic management purposes. In order to ensure the commitment of residents to the various traffic <br />management projects and to stretch the limited City funds as far as possible, the City is adopting a <br />cost sharing approach for all traffic calming projects. <br />Proiect Cost Share <br />1 "Basic Measures" include changes to traffic control, speed monitoring and other less expensive measures outlined in the "Allowable <br />Traffic Calming Measures" section above. <br />2 "Physical Measures" include the physical changes outlined in the "Allowable Traffic Calming Measures" section above. <br />3 The City will manage the construction and advance the money to complete the project. The subject residences will then reimburse <br />the City through the creation of a Special Service Area (SSA) as detailed in Step 4 of the "Process" section. <br />AnDroximate Cost For Initial Construction of Traffic Calmine Measures <br />1 Source: Combination of several documents including ITE /FHWA, 1999 "Traffic Calming State of the Practice." and —1999 <br />Newark, NJ study of ITE reported projects. Prices from study adjusted to 2009 assuming 3% annual inflation. National <br />information from websites tends to be both dated and wildly variable so these costs must be treated as very rough estimates. <br />Local costs from neighboring communities (e.g. speed humps) were used when available. <br />Costs vary considerably depending upon nature of the measures installed (e.g. extent of landscaping for traffic circles, <br />drainage structures impacted by curb extensions). Construction of measures as stand -alone projects is more expensive than <br />constructing them as part of a larger street reconstruction project. <br />Page 5of12 <br />
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