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The most sighifiCant accomplishment of this alignment is the creation of 153rd Avenue as an <br />east/west crasst0wn arterial. The alignment will require the construction of 0.65 miles of <br />roadway. Ini/4allv, this roadway will service a minimum of 550 vehicles per day. This projection <br />is based on afl an~ysis of the traffic using the east/west streets immediately north of the proposed <br />roadway. The fa~t that convenient crosstown access would be available will generate additional <br />trips. WithOu[ th6 benefit of a relatively costly origin/destination engineering study, however, it is <br />not possible to qaantify this amount of additional traffic. The alignment will reduce the travel <br />between the t/b,o I~oints it connects by 0.4 miles and will eliminate four turns currently being made <br />by traffic wis[aing to traverse these two points. Within a 20 year design period, traffic counts on <br />this segment 6f rOadway are anticipated to triple. <br /> <br />The constm¢6on of this roadway will reduce traffic on 156th Avenue from 468 vehicles per day to <br />approximately, 74 vehicles per day. Likewise, the traffic on 158th Avenue can be expected to <br />decrease by apprOXimately 150 vehicles per day. <br /> <br />The total project: cost is anticipated to be $600,000 with about $400,000 being anticipated in <br />construction t:ost. Major construction costs associated with this alignment include grading, <br />paving, curb ~ind gutter, wetland construction and impact mitigation. <br /> <br />Alternative 2: <br /> <br />Connect 155th Avenue with 154th Lane. <br /> <br />This alternative was proposed by a resident at the September 24 meeting. The proposed alignment <br />is illustrated on the attachment entitled Alternate 2 and entails the construction of 0.5 miles of <br />roadway. Thiis alignment would provide direct connection of the eastern segment of 153rd Avenue <br />with Armstrong Boulevard. Truck traffic wishing to continue westward would need to turn left <br />onto southbo~undlArmstrong Boulevard for 1100 feet, turn right and then continue on 153rd <br />Avenue west,~vard. Acceleration and deceleration charts will verify that even passenger vehicles <br />making this inaneuver will not reach the posted speed of Armstrong Boulevard In fact, a <br />passenger vehicl~ will only reach top speed of approximately 35 males per hour which means that <br />these vehicles will be traveling this 1100 foot distance at speeds between 20 to 40 miles per hour <br />slower that ~A~strong Boulevard traffic. Truck traffic making this maneuver will accelerate and <br />decelerate even slower and present even more of a safety hazard. To avoid this hazard, it is likely <br />that passengg vehicles wishing to continue westward beyond Armstrong Boulevard will very <br />likely contin4e along 154th Lane. This would also eliminate one turn over the aforementioned <br />MSA route which trucks must follow. Essentially, 154th Lane and Okapi Street would function as <br />a portion of We C~osstown arterial. This is objectionable from the standpoint that 39 single family <br />residential lots and one neighborhood park front on this street which was never anticipated to <br />function as arf, arterial street. <br /> <br />As a sub-alternative, it may be possible to offset 155th Avenue from 154th Lane a distance of 150 <br />feet by allowiihg !!55th Avenue to follow the section line. Although such an offset intersection may <br />serve to deter theruse of 154th Lane as a continuation of the arterial street by passenger vehicles, <br />those vehmle4; whmh will connnue making the cross street maneuver will do so at a greatly <br />increased hazard. Such intersection offsets are considered poor from a traffic engineering <br />standpoint and ar~ strongly discouraged. <br /> <br />As with Alternate. 1, it is expected that this link would initially service a minimum of 550 vehicles <br />per day and that additional traffic could likely be expected due to the convenience of this link being <br />available for ~av61. If this link were constructed, it would service the northwestern section of the <br />City better than ~lternate 1 as it would eliminate two turns for travelers having destinations in the <br />eastern portio~ns Of the City. In addition, Whispering Pines and adjacent subdivisions would have <br />more direct a~ess to the crosstown arterial. <br /> <br /> <br />