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Chapter 1 - Caltrans - State of California

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<strong>Chapter</strong> 3 Comments and Coordination<br />

Table 2.5-2 Peak Hour Speeds for Existing, Opening, and Horizon Years<br />

Analysis<br />

Years<br />

Existing<br />

(2006)<br />

Opening<br />

(2016)<br />

Alternatives<br />

Peak Hour Speeds<br />

SB (PM Peak Hour) NB (AM Peak Hour)<br />

MF HOV MF HOV<br />

57 55<br />

NO BUILD Alternative 48 42<br />

MINIMUM BUILD Alternative 60 62 53 65<br />

FULL BUILD Alternate 60 62 53 65<br />

NO BUILD Alternative 30 37<br />

Horizon (2036) MINIMUM BUILD Alternative 43 59 52 60<br />

FULL BUILD Alternate 43 59 52 60<br />

Note: US 101 Corridor exhibits very strong behavior <strong>of</strong> roughly one hour. Morning (6am-7am) Peak NB and<br />

afternoon (4pm-5pm) Peak SB.<br />

Sources: The Department’s District 7, Division <strong>of</strong> Planning, Public Transportation, and Local Assistance, November 2007, SCAG,<br />

Destination 2030: 2004 Regional Transportation Plan, Adopted April 2003.<br />

Environmental Consequences<br />

Based upon federal approval <strong>of</strong> the air quality conformity findings in the SCAG 2004<br />

RTP and 2006 RTIP, SBCAG’s 2004 MTP, and the project’s inclusion in the overall<br />

plan, the reduction in vehicle hours traveled (vht) and improved traffic flow, carbon<br />

dioxide emissions should be reduced despite what may be an increase in vehicle miles<br />

traveled (vmt).<br />

The Department recognizes the concern that carbon dioxide emissions raise for climate<br />

change. However, accurate modeling <strong>of</strong> GHG emissions levels, including carbon<br />

dioxide, at the project level is not currently possible. No federal, state or regional<br />

regulatory agency has provided methodology or criteria for GHG emission and climate<br />

change impact analysis. Therefore, The Department is unable to provide a scientific or<br />

regulatory-based conclusion regarding whether the project’s contribution to climate<br />

change is cumulatively considerable.<br />

The Department continues to be actively involved on the Governor’s Climate Action<br />

Team as ARB works to implement AB 1493 and AB 32. As part <strong>of</strong> the Climate Action<br />

Program at the Department ( December 2006), the Department is supporting efforts to<br />

reduce vehicle miles traveled by planning and implementing smart land use strategies:<br />

job/housing proximity, developing transit-oriented communities, and high density<br />

194 IS/EA VEN-SB US101 HOV Project

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