Variable LOS Transportation-Land Use Integration Plan ACHD Transportation-Land Use (Draft Findings) ACHD Integration Plan (TLIP) Slide #: 1
LOS Background Variable LOS Transportation-Land Use Integration Plan The first effort by ACHD for variable LOS occurred when the impact fee program was established in the early 1990s. At that time various roadways showed the need for additional capacity in the future but a decision was made by ACHD to not alter certain roadways to accommodate capacity (accept congestion) within the Capital (Draft Findings) Improvements Plan (CIP). ACHD Examples of these were: Harrison Blvd, 6 th Street, 16 th Street and Jefferson Street. ACHD, with the passage of the CIP update in 2006, identified more roadways that would remain in their current configuration despite projected congestion. These were 36 th Street from State to Hill and Hill Road. Additional roadways were identified as preservation only, indicating that impacts fees for widening would be collected only for corridor preservation, not construction. These were Overland Road Slide #: 2 and Franklin Road (which showed the need for 7 lanes), and Ustick from Cole to Curtis (which showed the need for 5 lanes).
Defining “Constrained” Corridors Variable LOS Transportation-Land Use Integration Plan � Physically � Contextually (Draft Findings) ACHD � Planned � Downtown Slide #: 3
Physically Constrained Variable LOS Meaning there is no more room to build because of various factors Transportation-Land Use Integration Plan (limited right-of-way, developed land use, topography). 36 th Street Cartwright (Draft Findings) from Bogus Basin to Dry Creek from State to Hill Rd ACHD Slide #: 4
Contextual Constraint Variable LOS Meaning the character of the area would be significantly Transportation-Land Use Integration Plan compromised. Harrison Boulevard (Draft Findings) ACHD Warm Springs from Broadway to future Parkcenter crossing Slide #: 5
Downtown Constraint Variable LOS Meaning that the system is complete in a downtown area and Transportation-Land Use Integration Plan expansion would compromise development potential and erode pedestrian level of service. Main & Idaho - Downtown (Draft Findings) Front/Myrtle constructed as alternative ACHD State Street Through downtown Eagle State St – Glenwood to Downtown Through downtown Meridian – Split Corridor Slide #: 6 proposed alternative
Planned Constraint Variable LOS Purposely planned for and negotiated by appropriate parties for Transportation-Land Use Integration Plan reasons of feasibility, economic development, land use goals, etc. Bown Way (Draft Findings) to accommodate innovative development ACHD State St – Glenwood to Downtown to accommodate goals for neighborhood centers along the corridor McMillan in North Meridian Slide #: 7 to accommodate goals for neighborhood centers along the corridor
ACHD / CIP Performance Measure Policy Variable LOS Ada County Street Capacity Guidelines Transportation-Land Use Integration Plan HOURLY VOLUME - PEAK Level of Service Arterial Class Lanes C D E Arterial Streets ACHD Principal Arterials (Draft Findings) No Left-Turn lane 1 *** 550 690 ACHD Continuous Center Left-Turn Lane 1 270 750 880 2 590 1600 1770 3 890 2440 2660 Median Control, Channelized Left-Turn Lanes @ Major Intersections 1 280 790 920 2 620 1680 1860 3 930 2560 2790 ACHD Minor Arterials No Left-Turn lane 1 *** 550 690 Unrestricted Median, Continuous Center Left-Turn Lane 1 270 720 880 2 590 1540 1770 Slide #: 8 3 890 2370 2660 Median Control, Channelized Left-Turn Lanes @ Major Intersections 1 280 760 920 2 620 1620 1860 3 930 2490 2790
ACHD / CIP Performance Measure Policy Variable LOS Transportation-Land Use Integration Plan Intersections Table C-5: Intersection Capacity and Analysis Methods (Draft Findings) Defined Parameters 1 ACHD Cycle Sat. Min. Lost Flow. Left Length Time Policy Threshold (vphpl) (sec) (sec) PHF (sec) LOS “D” = V/C .90 Capacity: LOS “E” = 1.00 Intersection v/c = 0.90; Method: 1,900 150 20 3 0.90 AND Lane Group v/c = 1.00 Defined parameters are: saturation flow-rate; signal cycle length, minimum left-turn phasing, lost time per phase, and peak hour factor. Slide #: 9
ACHD Variable Transportation-Land Use Integration Plan LOS Slide #: 10 (Draft Findings) C Blueprint Tiers (working finding ?) D E
Example: Regional Performance Measures Variable LOS Transportation-Land Use Integration Plan MOTOR VEHICLE PERFORMANCE MEASURES Motor Vehicle Performance Measures are a technical expresion of the jurisdiction's Peak Period (one- or two-hour) policy on livability. Level Of Volume-to-Capacity Service (LOS) (V/C) Jurisdiction Wilsonville Policy (TSP) D 1-Hour Period (Draft Findings) Boones Ferry Rd, Elligsen Rd & Wilsonville Road (Boones Possible Exceptions E Ferry - Town Center Loop W) Lake Oswego E .90 -.99 1-Hour Period Tigard E .90 -.99 1-Hour Period ACHD Tualatin Town Center / 2040 F 1st Hr E 2nd Hr Other E 1st Hr E 2nd Hr Washington County (AM or PM peak period) Main Streets E 0.99 2- Hour Period 1st Hr Target E 0.99 Acceptable D 0.90 2nd Hr Target E 0.99 Acceptable Urban area D 0.90 2- Hour Period 1st Hr Target E 0.99 Acceptable D 0.90 2nd Hr Target D 0.90 Acceptable METRO RTP - Town Center Mid-Day C Preferred E Acceptable 2-Hour AM or PM Peak Period E Preffered 1st Hr E 2nd Hr F Acceptable 1st Hr E 2nd Hr ODOT (1999 OHP) 0.90 Freeway (ramps) 2-Hour Slide #: 11
Defining Level-Of-Service Variable LOS Roadway Level of Service. This Transportation-Land Use Integration Plan is a measure of roadway congestion ranging from… LOS A--least congested -- to LOS F--most congested. LOS is one of the most (Draft Findings) common terms used to ACHD describe how "good" or how "bad" traffic is projected to be. LOS serves as a benchmark to determine whether new development will comply with an existing LOS or if it will exceed the preferred or adopted LOS. Slide #: 12 Typical Policy Threshold: LOS D
Example: Regional Performance Measures Variable LOS MOTOR VEHICLE PERFORMANCE MEASURES Peak Period (one- or two-hour) Transportation-Land Use Integration Plan Level Of Volume-to-Capacity Service (LOS) (V/C) Jurisdiction Wilsonville Policy (TSP) D 1-Hour Period Boones Ferry Rd, Elligsen Rd & Wilsonville Road (Boones Possible Exceptions E Ferry - Town Center Loop W) (Draft Findings) Lake Oswego E .90 -.99 1-Hour Period Tigard E .90 -.99 1-Hour Period ACHD Tualatin Town Center / 2040 F 1st Hr E 2nd Hr Other E 1st Hr E 2nd Hr Washington County (AM or PM peak period) Main Streets E 0.99 2- Hour Period 1st Hr Target E 0.99 Acceptable D 0.90 2nd Hr Target E 0.99 Acceptable Urban area D 0.90 2- Hour Period 1st Hr Target E 0.99 Acceptable D 0.90 2nd Hr Target D 0.90 Acceptable METRO RTP - Town Center Mid-Day C Preferred Slide #: 13 E Acceptable 2-Hour AM or PM Peak Period E Preffered 1st Hr E 2nd Hr F Acceptable 1st Hr E 2nd Hr ODOT (1999 OHP) 0.90 Freeway (ramps) 2-Hour
Example: Minor Arterials in Portland UGA Variable LOS Transportation-Land Use Integration Plan (Draft Findings) ACHD Slide #: 14
ACHD Variable Transportation-Land Use Integration Plan LOS Slide #: 15 (Draft Findings) Examples from Portland / Metro
ACHD Variable Transportation-Land Use Integration Plan LOS Slide #: 16 (Draft Findings) Traffic Volumes
Bridgeport Road: Minor Arterial – Urban Street Variable LOS Transportation-Land Use Integration Plan (Draft Findings) ACHD Slide #: 17
Nyberg Road: Minor Arterial – Regional Boulevard Variable LOS Transportation-Land Use Integration Plan (Draft Findings) ACHD Slide #: 18
Wilsonville Road: Minor Arterial – Regional Street Variable LOS Transportation-Land Use Integration Plan (Draft Findings) ACHD Slide #: 19
Wilsonville Road: Minor Arterial – Regional Street Variable LOS Transportation-Land Use Integration Plan (Draft Findings) ACHD Slide #: 20
Expected TLIP Products Variable LOS Transportation-Land Use Integration Plan � Street Funct. Classification Policy w/ Map � Livable Street Standards w/ Typology (Draft Findings) � Revised LOS Policy & Thresholds ACHD � Corridor Preservation Plan & Map � Access Management Policy & Plan Local Adoption through Slide #: 21 Blueprint for Good Growth
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