8.2. SR 06-20-2016 - Laserfiche WebLink

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Executive Summary Background. The purpose of this study is to determine if any modifications should be made along Line Avenue between Main Street/181St Avenue and Twin Lakes Road. This includes looking at potential impacts to surrounding intersections if Line Avenue was converted to a cul-de-sac between Main Street/181 st Avenue and Twin Lakes Road. The potential cul-de-sac options are: • At Twin Lakes Road (Alternative A) • Between 5t" Street and 3rd Street (Alternative B) • Between 3rd Street and Main Street (Alternative C) In addition, the 5th Street intersections with Dodge Avenue and Line Avenue were examined to determine potential impacts if re -aligned to better recognize the east -west dominant movement. Results.- The esults.The traffic impacts of a cul-de-sac on Line Avenue between Main Street/181St Street and Twin Lakes Road as well as the potential to recognize the dominant east -west movement on 5t" Street were analyzed. The principle findings are: • The study intersections all have satisfactory overall operations today, except the eastbound left turn movement on Line Avenue at Twin Lakes Road/Line Avenue during the p.m. peak. • The existing volumes for the intersection of Twin Lakes Road/181St Avenue do not satisfy any signal warrants. • With the shifts in existing volumes, the three alternatives for a cul-de-sac on Line Avenue have overall acceptable operations, except for the Twin Lakes Road/Line Avenue intersection during the p.m. peak hour under Alternatives B and C. • The potential mitigation of a southbound left turn lane/eastbound right turn or a single -lane roundabout at the Twin Lakes Road/Line Avenue intersection improves the operations under any scenario. • Alternative A represents the most impact to cut -through traffic on Line Avenue and least impact to other routes with origins and destinations within the study area. • Alternative C represents the least impact to cut -through traffic on Line Avenue and most impact other routes with origins and destinations within the study area. • Although Warrants 2 and 3 are satisfied using shifted volumes at the intersection of Twin Lakes Road/181St Avenue under any Line Avenue alternative, traffic operations suggest a traffic signal is not justified. It is likely that additional development and traffic growth in the area will increase delays and satisfy the criteria for Warrant 1 in the near future. • Warrants for a traffic signal or all -way stop control at the 5t" Street intersections with Dodge Avenue and with Line Avenue are not satisfied with existing volumes and unlikely to be satisfied with shifted volumes under any Line Avenue alternative. Traffic Operations Study i Line Avenue in Elk River