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<br /> City of Arden Hills <br /> Budget Analysis Report <br /> May 04, 2006 <br /> Page 4 <br /> . ----p;;vement Manage';;;"t P~~~~ent Benefit ~ <br /> 100 . ~~<::::________ -- -.------....-... _______u_,__u .------.---...----.- <br /> -....... .......... PCI After M aJ!1tene,"e I <br /> -""', <br /> , __ N" .M_.~. ,.... <br /> X Decay Gwve Before Mamt.entsnce ........., <br /> .g 80. muuu mmuuu"u,uuu .m uumm u <br /> ~ 60 ----------- ------------ --- '~~- '> ~b:,.---- --------- <br /> U , <br /> C pel befOfe Mamleno.nce <br /> 0 <br /> 0 Decay Cwve After Ma.mtenance <br /> +-' 40 I <br /> c -------- .._-----..--._- --- -- ------------ --- - .. ~ - - - . - - - ~ - .. - - .. .- - . - - . - .. - <br /> (j) , I <br /> E "- I <br /> (j) <br /> > . - - .. - - . - - - -'~ - - - - .. . - - _. .. . - .. <br /> ttl 20 -----.-------------- -._---------------- -- <br /> iL " <br /> , <br /> " I <br /> 0 -.. ---r"----.--.-----..,- I . I ---,----,-.---T"---..-,.. ..-T-..----,---.--,-.-.----.--...---, -..- <br /> 0 5 10 15 20 25 30 35 <br /> Age Since Construction <br /> -. --"--..--..-- --- --" ---------.--.----------.-- --. - .-... --- ------ .----' <br /> Figure 2 <br /> . The shaded area is the benefit provided by the maintenance being done at some point <br /> in time. Factors that influence the benefit are: <br /> . type of pavement (determines which decay curve to use); <br /> = age of pavement (affects the PCI increase); <br /> . type of maintenance proposed (affects the PCI increase); and <br /> . cost of the proposed maintenance (affects the cost/benefit ratio). <br /> In most cases, the maximum benefit or extension of pavement life may be provided by <br /> some combination of maintenance procedures as opposed to using one type of <br /> maintenance, since combining maintenance techniques often provides larger increases <br /> in the PCI. The benefit of performing each type of maintenance is then divided by the <br /> calculated cost to determine the cost/benefit ratio of each alternative. Note that there <br /> are limiting conditions that may prohibit a procedure from being selected such as lack of <br /> funding or minimal PCI increase for the selected maintenance procedure. <br /> Prioritized Work Plan <br /> Maintenance and repair work can be prioritized in a number of ways. Pavements in the <br /> worst condition can be fixed first. Pavements in the best condition can be fixed first. An <br /> optimal prioritization method distributes funding between the preventive maintenance of <br /> "good" to "excellent" pavements; the rehabilitation of "fair" to "poor" pavements; and, the <br /> reconstruction of "very poor" or "failed" pavements_ Pavement sections within the Arden <br /> Hills pavement network were prioritized for maintenance and repair according to an <br /> optimal prioritization plan. <br /> . <br />