Length of Street is another important criterion to <br />consider in a street's classification. The longer a <br />street is,_the more likely It is that the street will <br />function at a higher classification. This. is due to <br />the fact that longer (continuous) streets allow <br />travelers to move between distant attractors with <br />a limited number of turns, stops, and other <br />distractions that discourage them from using <br />streets of lower classification. Length of a given <br />street segment, while not the same as trip length <br />for. the average trip using'that street, is seen as <br />strongly. correlated with trip length=which is <br />itself an indicator of the extent of mobility pro- . <br />vided by the street, To illustrate, state highways <br />that traverse Eugene--including Highway 99 and <br />Highway 126 (via 6th-7th and West 11 th) are long, <br />continuous streets that carry proportionately <br />longer trips than a street like 511' Avenue or Valley <br />River Drive, Therefore these longer streets gener- <br />ally supply a higher level of mobility as compared <br />to other streets that are providing more access, <br />Spacing of St Teets is another criterion that <br />relates to provision of mobility and/or access. <br />Streets of higher. classification usually have larger <br />traffic carrying capacity and fewer impediments <br />to travel. Fewer facilities are needed to serve the <br />traffic mobility demands-of the community due to <br />their efficiency in moving traffic. Generally; this <br />means that there are fewer streets of higher <br />classification so there will be larger distances <br />between them. Therefore, the further a street is <br />from a higher classification street, the more likely <br />it is that the streetwill function at a similar <br />classification (if the street length, degree of <br />connectivity, and design allow it to serve that <br />purpose,) Streets of lower classification are <br />needed to provide access to abutting land. In <br />order to do this, they must be spaced more <br />closely and. there must be many more of them. It <br />is considered most desirable to have a network of <br />multiple lower classification streets feeding into <br />progressively fewer higher classification streets. <br />Connectivity is the final attribute used to deter- <br />mine street classification, Streets that provide <br />easy connections (or connectivity) to other roads <br />of higher classification are likely to function at a <br />similar classification. This can be attributed to <br />the ease of movement perceived by travelers <br />who desire to make that connection. For ex- <br />ample, state highways are generally intercon- <br />nected with one another, to provide a continu- <br />ous network of high-order roadways that can be <br />used to travel into-and through urban areas. <br />Urban minor arterials provide a similar intercon- <br />nected' network at the city-wide level. By con-. <br />trast, collector streets often connect local neigh- <br />borhood streets with one or two arterial streets, <br />thus helping provide connectivity at the neigh- <br />borhood scale rather than a city-wide level. <br />Local streets also provide a degree of connectiv- <br />ity as a necessary component of property access. <br />However, the street lengths, traffic control, and/ <br />or street geometry are usually composed so that <br />anyone but local travelers would consider the <br />route inconvenient, except for access to the <br />immediate neighborhood. <br />Eugene St reet aassificat ions <br />Appendix C includes the Street Classification Map, <br />along with a tabular listing of each street section, <br />Appendix D is the Street Classification Matrix, <br />containing the numerical ratings for the five criteria <br />discussed above, for each street segment. Appendix <br />'E summarizes the process by which these five criteria <br />have been used todevelop a proposed Street Classifi- <br />cation Map for Eugene. <br />35. <br />617 <br />