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Comprehensive Plan Transportation Element <br />Handbook, Level -of -Service capacities in the generalized tables decreased for nearly all <br />classifications of roadways. While many of the capacities increased in the latest (2009) FDOT <br />handbook, the overall trend remains lower. For example, the peak hour directional capacity at LOS <br />"D" for a 4 -lane roadway with between 2 and 4.5 signals/mile dropped from 1,890 vehicles in the <br />1998 handbook to 1,770 vehicles in the 2009 handbook. Because the generalized tables are the <br />basis of most of the county's LOS capacity determinations, lower capacity volumes result in lower <br />levels of service at the same traffic volume. <br />Despite the trend toward lower levels -of -service, no roadway segments in unincorporated Indian <br />River County actually exceed their adopted LOS standard. While several roadway segments exceed <br />Level of Service "D", those roadways are within their adopted standard. That is because the county <br />lowered the level of service standard to "E+20%" on portions of those roadways. Those roadways <br />are 43rd Avenue and 27th Avenue in south Indian River County. It is anticipated that this reduction <br />in the adopted level -of -service standard will be a temporary measure until those roadways can be <br />widened. <br />Safety <br />On a regular basis, the county examines its crash records to identify those locations with high crash <br />occurrences. The county also seeks opportunities to improve safety in future roadway projects and <br />routinely examines existing travel conditions in order to improve deficiencies that may not yet be <br />reflected in crash statistics. As a result, both the crash rate per capita (.012) and the crash rate per <br />vehicle miles traveled (1 per 2,800 VMT) have remained constant over time in Indian River County. <br />While this does not indicate improved safety, it does indicate that safety is not getting worse. This is <br />significant in a climate of increasing congestion and population growth. Because the percentage of <br />crashes resulting in fatalities has also remained constant (2% of all crashes), this indicates that no <br />increase in the severity of crashes has occurred in Indian River County. <br />While overall crash rates have remained constant in Indian River County in the past decade, the <br />number of intersections with five or more crashes has increased over time. This is not, however, <br />necessarily indicative of a worsening safety situation. Rather, it is to be expected that the number of <br />crashes will increase, given recent growth in population, travel, and the number of new intersections <br />that result from new roadway construction. A better indication of safety can be determined by <br />examining overall crash rates and the severity of crashes, a technique utilized in the 2025 Florida <br />Transportation Plan. <br />It should be noted that safety on many of the major corridors in the county has improved <br />dramatically despite a significant increase in traffic. This can be attributed to the fact that FDOT and <br />the county routinely undertake a number of safety improvements in the course of roadway widening <br />projects. For example, part of the decline on USI and SR 60 can be attributed to FDOT's safety <br />management techniques, including the installation of mast arm signalization and backlit street <br />identification signs; access management improvements, including the installation of center medians; <br />and the use of ITS technologies (including fiber optic cables, traffic cameras, and white <br />enforcement lights). As more information on the effectiveness of FDOT's techniques is obtained, <br />some or all of these improvements may be incorporated into the county's roadway design and safety <br />procedures. <br />Community Development Department Indian River County 53 <br />