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11 ATTACHMENTS 02-04
City of Pleasanton
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CITY CLERK
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2013
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11 ATTACHMENTS 02-04
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10/9/2013 4:21:34 PM
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CITY CLERK
CITY CLERK - TYPE
AGENDA REPORT
DOCUMENT DATE
10/15/2013
DESTRUCT DATE
15Y
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Wayne Rasmussen <br /> July 25, 2013 <br /> Page 3 of 11 <br /> Two significant new research studies provide the opportunity to improve the state of practice. <br /> One study sponsored by the US EPA and another by the Transportation Research Board2 have <br /> developed means to improve trip generation estimation for mixed-use development (MXD). The <br /> two studies examined over 260 mixed-use development sites throughout the U.S. and, using <br /> different approaches, developed new quantification methods. Fehr& Peers has reviewed the two <br /> methods, including the basis, capabilities, and appropriate uses of each, to produce a new <br /> method (MXD+) that combines the strengths of the two individual methods. MXD+ recognizes <br /> that traffic generation by mixed-use and other forms of sustainable development relate closely to <br /> the density, diversity, design, destination accessibility,transit proximity, and scale of development. <br /> MXD+ improves the accuracy of impact estimation and gives planners a tool to rationally balance <br /> land use mix and to incorporate urban design, context compatibility, and transit orientation to <br /> create lower-impact development. <br /> The MXD+ methodology starts with ITE trip generation estimates but then adjusts those <br /> estimates to account for the mixed-use and environment characteristics. <br /> Use of the MXD+ methodology requires more input data than a traditional trip generation <br /> application. Data detailing the geographic layout of the site, land use in the surrounding area, <br /> and socioeconomic data of both the site and the surrounding area were collected to inform the <br /> MXD+ methodology. Model inputs, in addition to land use information, include the number of <br /> jobs within a 30 minute transit ride of the EPSP area, the expected level of auto-ownership, and <br /> average household size. Sources used to collect this data include the Contra Costa Transportation <br /> Authority(CCTA)travel demand model, the Metropolitan Transportation Commission (MTC)travel <br /> demand model, Census and American Community Survey (ACS), the Bay Area Travel Survey <br /> (BATS), and the Specific Plan Options. <br /> Table 2 shows the trip generation potential of each option through several different <br /> transportation metrics. External vehicle trips represent trips that would interact with roadway <br /> facilities outside the Project area and could potentially result in off-site traffic impacts. Internal <br /> capture represents trips that have both an origin and destination within EPSP, including residents <br /> ' <br /> Traffic Generated by Mixed-Use DevelopmentsāA Six-Region Study Using Consistent Built Environmental <br /> Measures(Ewing et al,ASCE UP0146, Sept 2011) <br /> 2 National Cooperative Highway Research Program (NCHRP) Report 684 Enhancing Internal Trip Capture <br /> Estimation for Mixed-Use Developments(Bochner et al, March 2011) <br />
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