Master Transportation Plan Medium-Term Modeling Analysis
Table 8: 2050 Build Condition Alternative Analysis Results
Alternatives
Control Type
Turn Lane
Description
HCM 7th
Convert the intersection from TWSC to signalized control; eastbound left-turn operates as protected; eastbound right- turn operates as permitted; northbound left-turn operates as permitted and protected
Alt 1
Signalized
No
E
Alt 2
Signalized
No
Same as Alt 1, with eastbound left-turn bay extended to 500 ft
E
Convert to signalized control; add a 500 ft eastbound right-turn bay (dual right turns); eastbound left-turn permitted; dual right-turns protected; northbound left-turn permitted and protected Convert the intersection to signalized control and add a 200- foot northbound left-turn bay along Chapel Creek Blvd, creating dual northbound left-turn lanes with protected phasing. The Chapin Road (minor street) approach will include two receiving lanes to accommodate the dual northbound left- turns from Chapel Creek Blvd. The eastbound approach will provide a full inside left-turn lane rather than a storage lane. The right-turn lane on the eastbound approach will be channelized, and the continuation of this outer lane beyond the channelization will be hatched off with pavement markings to reserve space for future expansion when a fourth leg of the intersection is constructed as part of the Chapin Road extension.
Alt 3
Signalized
Yes
B
Alt 4
Signalized
Yes
A
Note: LOS values reflect overall intersection delay per HCM 7th Edition methodology.
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