Master Transportation Plan Medium-Term Modeling Analysis
4.2.4 Preferred Alternative and City Decision Among the alternatives evaluated, Alternative 4 (see Figure 40) which introduces a 200-ft northbound left-turn bay creating dual left-turn lanes was identified as the preferred alternative following coordination with the City of Fort Worth. The selected alternative includes: • Conversion from unsignalized to signalized control • Addition of a 200 ft northbound dual left-turn bay along Chapel Creek Blvd with protected phasing for the northbound left-turn movement • Provision of two receiving lanes along Chapin Road to accommodate the dual northbound left- turns • Modification of the eastbound approach to include a full inside left-turn lane • Channelization of the eastbound right-turn lane, with the continuation of the outer lane hatched off to reserve space for future intersection expansion. Appendix 2 contains the detailed proposed intersection layout of the preferred Alternative 4. The addition of northbound turn lane capacity and the channelization of the eastbound right-turn movement significantly improve intersection operations. Under optimized signal timing, Alternative 4 is projected to operate at LOS A with an overall average control delay of 6.8 seconds per vehicle, based on the HCM 7th Edition methodology. AECOM will continue coordination with the City of Fort Worth to refine lane configurations, storage lengths, and signal phasing parameters prior to final design implementation.
www.MovingaMillion.org | transportation@fortworthtexas.gov page 51
Made with FlippingBook - professional solution for displaying marketing and sales documents online