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Legacy North to Legacy Connection Evaluation Study August 18, 2007

Legacy North to Legacy Connection Evaluation Study August 18, 2007. Background. UDOT North Legacy to Legacy Connection Corridor Preservation Study – June 14, 2007. Goal:

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Legacy North to Legacy Connection Evaluation Study August 18, 2007

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  1. Legacy North to Legacy Connection Evaluation Study August 18, 2007

  2. Background UDOT North Legacy to Legacy Connection Corridor Preservation Study – June 14, 2007 Goal: Examine [and select] a corridor for a future connection between the existing Legacy Parkway and the future North Legacy Highway Criteria: • Provide a direct connection to I-15 • Provide a direct connection to the Legacy Parkway • Provide a local access connection to the Legacy/North Legacy Parkway • Meet the transportation needs based on 2040 traffic projections

  3. Study Tasks • Review UDOT traffic model volume projections • Assess UDOT corridor alignment options • Assess the City’s current Master Transportation Plan alignment option as a viable UDOT option • Identify and assess additional corridor alignment options • Assess Park Lane capacity and safety considerations Which option is best for the City of Farmington?

  4. 1) UDOT Traffic Model Volume Projections Key Issues: • Forecasts were developed primarily for the purpose of analyzing 2040 traffic operations • Formal environmental document required to determine/ substantiate facility purpose and need • Facility Type • Number of Lanes • Beginning and Ending Points (Logical Termini)

  5. 2) UDOT Corridor Alignment Options UDOT North Legacy to Legacy Connection Corridor Preservation Study – June 14, 2007 Option 1: D&RG Split Interchanges Option 2: Western Alignment Option 3: D&RG South Interchanges Option 4: Eastern Alignment UDOT would generally like to preserve a 300 foot wide corridor

  6. UDOT Option 1D&RG Split Interchanges I-15 Shepard Ln. North Legacy Highway US 89 PROS Adjacent to existing (and potentially future) rail and utility corridor – current divider. Potential for additional interchange connections to western residential and commercial roadways; reduce demand on Park Lane/I-15 interchange. Utilizes current Master Transportation Plan right of way near Shepard Ln. Provides a distinct geographic separation between commercial and residential areas Park Ln. Clark Ln. State St. Powerline Corridor D&RG Corridor Legacy Parkway Glovers Ln. I-15

  7. UDOT Option 1D&RG Split Interchanges I-15 Shepard Ln. North Legacy Highway US 89 CONS Additional geographic division of Farmington. Potential for increased noise and air quality impacts to additional residential areas. Split interchange configurations for Legacy Parkway and I-15; operational and right-of-way considerations. Impacts to commercial properties west of I-15. Park Ln. Clark Ln. State St. Powerline Corridor D&RG Corridor Legacy Parkway Glovers Ln. I-15

  8. UDOT Option 2Western Alignment North Legacy Highway I-15 Shepard Ln. US 89 PROS No additional geographic division of Farmington Potential for interchange connections to western roadways Utilizes current Master Transportation Plan right of way near Shepard Ln. Likely the least impact to existing and planned development D&RG Corridor Park Ln. Clark Ln. State St. Powerline Corridor Legacy Parkway Glovers Ln. I-15

  9. UDOT Option 2Western Alignment North Legacy Highway I-15 Shepard Ln. US 89 CONS Potential for interchange connections to western residential roadways Potential changes to land use near interchanges Inability to decrease demand on the Park Lane/ I-15 interchange Significant concerns regarding viability of the option due to wetland and wildlife habitat issues Western alignment likely to serve less of the regional demand; impacts along I-15 D&RG Corridor Park Ln. Clark Ln. State St. Powerline Corridor Legacy Parkway Glovers Ln.

  10. UDOT Option 3D&RG South Interchanges Shepard Ln. North Legacy Highway I-15 PROS Combined interchange area for both I-15 and Legacy Parkway Adjacent to existing (and potentially future) rail and utility corridor – current divider Potential for additional interchange connections to western residential and commercial roadways; reduce demand on Park Lane/I-15 interchange. Would require detailed analysis Provides a distinct geographic separation between commercial and residential areas US 89 D&RG Corridor Park Ln. Clark Ln. State St. Powerline Corridor Legacy Parkway I-15 Glovers Ln.

  11. UDOT Option 3D&RG South Interchanges Shepard Ln. North Legacy Highway I-15 CONS US 89 Additional geographic division of Farmington Potential for increased noise and air quality impacts to additional residential areas Impacts to commercial lands west of I-15 D&RG Corridor Park Ln. Clark Ln. State St. Powerline Corridor Legacy Parkway I-15 Glovers Ln.

  12. UDOT Option 4Eastern Alignment Shepard Ln. North Legacy Highway I-15 PROS Combined interchange area for both I-15 and Legacy Parkway No additional geographic division of Farmington Potential noise and air quality concerns stay primarily within the currently impacted areas US 89 D&RG Corridor Park Ln. Clark Ln. State St. Powerline Corridor I-15 Legacy Parkway Glovers Ln.

  13. UDOT Option 4Eastern Alignment Shepard Ln. North Legacy Highway I-15 CONS US 89 Limited ability to provide local access connections Elevated facility in vicinity of Station Park development Close proximity to I-15; incident management concerns Further limits potential for future additional I-15 interchange connections to the local transportation network Impacts to commercial lands west of I-15 D&RG Corridor Park Ln. Clark Ln. State St. Powerline Corridor I-15 Legacy Parkway Glovers Ln.

  14. 2) UDOT Corridor Alignment Options Which option is best for the City of Farmington? Each option has either a substantial con and/or requires further study in order to conclude that the particular option is indeed “better” than the others or the “best” for the City. Possible that none of the UDOT options help Park Lane so that it functions adequately in the future. The preparation of an environmental document would likely assist in providing answers to many of the technical questions but would not help in making decisions on items that are goal oriented or value based.

  15. 3) City’s Current MTP Alignment Option Won’t accommodate the 2040 traffic demands

  16. 4) Additional Corridor Alignment Options Is there a potentially better solution? (Within the context of a Corridor Preservation Study)

  17. UDOT Option 2Western Alignment North Legacy Highway I-15 Shepard Ln. US 89 Modifications Combine I-15 & Legacy Parkway interchanges south of Glovers Lane (not depicted) I-15 local access interchange at Shepard Lane North Legacy Highway local access interchange on 1525 W. near Glovers Lane. Others? Development of local transportation roadway network west of I-15 D&RG Corridor Park Ln. Clark Ln. State St. Powerline Corridor Legacy Parkway Glovers Ln. I-15

  18. UDOT Option 3D&RG South Interchanges Shepard Ln. North Legacy Highway I-15 Modifications Shifting of I-15 & Legacy Parkway interchanges slightly north to minimize impacts to 250 S. area (not depicted) I-15 local access interchange at Shepard Lane North Legacy Highway local access interchange at Park Lane Development of local transportation roadway network west of I-15 US 89 Park Ln. D&RG Corridor Clark Ln. State St. Powerline Corridor Legacy Parkway I-15 Glovers Ln.

  19. UDOT Option 4Eastern Alignment Shepard Ln. North Legacy Highway I-15 Modifications US 89 I-15 local access interchange at Shepard Lane North Legacy Highway local access interchange between Shepard Lane & Park Lane Development of local transportation roadway network west of I-15 D&RG Corridor Park Ln. Clark Ln. State St. Powerline Corridor I-15 Legacy Parkway Glovers Ln.

  20. 4) Additional Corridor Alignment Options Results were modifications to or combinations of one or more of the four UDOT options Although some of the additional alignment options represented a perceived improvement as compared to the original options, none proved to address the primary issues of concern or resulted in the elimination of relevant questions better than any other option. Issues such as precise interchange locations, lane configurations, vertical and horizontal alignments, and right-of-way requirements are not addressed until the environmental document is prepared and approved and final design is completed.

  21. 5) Park Lane Capacity and Safety Considerations Unique Facility: • Located at the convergence of three freeway systems (US 89, I-15 and Legacy Parkway) • Only current I-15 interchange directly serving the areas west of I-15 between 200 North/SR 273 in Kaysville (± 4 miles to the north) and Parrish Lane in Centerville (± 5 miles to the south)

  22. 5) Park Lane Capacity and Safety Considerations Unique Facility: • Located at the convergence of three freeway systems (US 89, I-15 and Legacy Parkway) • Only current I-15 interchange directly serving the areas west of I-15 between 200 North/SR 273 in Kaysville (± 4 miles to the north) and Parrish Lane in Centerville (± 5 miles to the south) Capacity issues need to be addressed regardless of what happens with UDOT’s corridor preservation effort

  23. 5) Park Lane Capacity and Safety Considerations Station Park Traffic Study • Recommends capacity improvements to Park Lane and interchanges with 1-15 and US-89 • Indicates that future (2030) traffic demands on Park Lane at both the US-89 and I-15 interchanges will result in failing traffic conditions

  24. 5) Park Lane Capacity and Safety Considerations Improvement Concepts: • Reconfigure the existing US-89/ Park Lane interchange from a tight-diamond to a Single Point Urban Interchange (SPUI). • Reconfigure the existing I-15/ Park Lane interchange from a tight-diamond to a SPUI. • Widen the existing structures over I-15 and US-89 to accommodate additional capacity. • Construct an additional closely spaced but separate parallel facility over US-89 and I-15 immediately north of the existing facility. • Eliminate local access from I-15 and/ or US-89. • Additional I-15 local access interchanges.

  25. 5) Park Lane Capacity and Safety Considerations Additional I-15 Local Access Interchanges? • VERY difficult south of the US-89/ Park Lane interchange: • Adjacent rail corridor and Legacy Parkway • Difficult north of the US-89/ Park Lane interchange: • Adjacent rail corridor • Adjacent residential development The Shepard Lane crossing represents the most feasible location for a future I-15 local access interchange

  26. 5) Park Lane Capacity and Safety Considerations Shepard Lane Local Access Connection • In the past, only studied as a potential connection to North Legacy Highway • Could reduce the demand on Park Lane by as much as 30 percent as well as accommodate a significant amount of traffic associated with potential development west of I-15 • Must include supporting roadway network west of I-15

  27. Study Recommendations Which option is best for the City of Farmington? Viewpoints: • Don’t divide Farmington any more • Don’t increase noise • Don’t lower air quality • Address issues related east/west circulation (Park Lane & traffic on neighborhood streets) • Maximize the potential for commercial/retail development (tax base) • Enhance/Maintain Farmington’s “rural quality of life.” • Reduce congestion on I-15 • Enhance/Maintain suitable natural habitats for wildlife

  28. Study Recommendations • Wait to consider UDOT’s request to amend the Master Transportation Plan preserving a connection corridor until UDOT completes an Environmental Assessment (EA) or Environmental Impact Statement (EIS). • Consider an amendment to the Master Transportation Plan to remove the current North Legacy to Legacy connection option (In conjunction with #4). • Initiate an effort to look at the development potential west of I-15 • Quantify the magnitude of traffic • Identify and analyze key traffic access and circulation issues • Study the feasibility for a local access Shepard Lane interchange • If a local access interchange is viable at I-15/ Shepard Lane, pursue an amendment to the Master Transportation Plan to include the interchange.

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