Transit Impacts and Travel Demand Forecasting Results Report
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Southwest Light Rail Corridor Draft Environmental Impact Statement Transit Impacts and Travel Demand Forecasting Results Report May 31, 2018 TABLE OF CONTENTS 1. Introduction .......................................................................................................................... 1 2. Affected Environment ........................................................................................................... 1 2.1 Public Transportation ................................................................................................................................. 1 2.2 Travel Behavior ........................................................................................................................................... 2 3. Transit Impacts ..................................................................................................................... 3 3.1 District-to-District Travel Demand and Mode Choice ........................................................................ 3 3.1.1. Total Person Trip Demand ......................................................................................................................... 3 3.1.2. Transit Work Trip Demand ......................................................................................................................... 3 3.1.3. Total Transit Trip Demand ......................................................................................................................... 3 3.2 Service Characteristics ...................................................................................................................... 4 3.2.1. Amount of Service ...................................................................................................................................... 8 3.2.2. Travel Time ................................................................................................................................................. 9 3.2.3. Reliability .................................................................................................................................................. 10 3.3 Transit Ridership ..............................................................................................................................10 3.3.1. Light Rail Ridership ................................................................................................................................... 11 3.3.2. Corridor and Systemwide Ridership ........................................................................................................ 11 3.3.3. Transit Trip Productions ........................................................................................................................... 12 3.3.4. Work and Non-Work Transit Trips and Mode Share ............................................................................... 14 3.3.5. Station Usage and Mode of Access and Egress ........................................................................................ 14 3.3.6. Light Rail Ridership Distribution ............................................................................................................... 15 3.3.7. Corridor Throughput ................................................................................................................................ 16 3.4 Light Rail Alternatives ......................................................................................................................19 3.4.1. Park and Ride Range ................................................................................................................................ 21 3.4.2. Minimum Operable Segment (MOS) ....................................................................................................... 21 3.4.3. Initial Route Proposal ............................................................................................................................... 21 Appendices Southwest Corridor Light Rail Transit Impacts and Travel Demand Forecasting results Reports| May 31, 2018 i 1. INTRODUCTION This Results Report addresses the effects on transit use and services that could occur with the Southwest Corridor Light Rail Project. The report provides supplemental information to Section 3 of the Southwest Corridor Light Rail Project Draft Environmental Impact Statement. 2. AFFECTED ENVIRONMENT This section summarizes the characteristics and performance of the existing transportation system in the corridor and in the region. 2.1. Public Transportation Transit service in the corridor features fixed-route, fixed-schedule buses operating in mixed traffic, and the Westside Express Service (WES) Commuter Rail operating during peak hours between Beaverton and Wilsonville. The major bus route is the 12 Barbur. The 96 Tualatin/I-5 bus runs peak hour, express service between Tualatin and downtown Portland. The Portland Aerial Tram connects the South Waterfront and Oregon Health & Science University (OHSU). Transit Lines, Operations and Facilities The Tri-County Metropolitan Transportation District of Oregon (TriMet) has a current fleet of 683 buses that serves 81 bus lines and seasonal shuttles with 6,591 bus stops and 980 bus shelters. There are 180 miles of frequent-service bus lines on 13 routes that provide 15-minute or better service 7 days a week. The 97-station Metropolitan Area Express (MAX) light rail system is 60 miles long and also operates at least every 15 minutes. In addition to fixed-route bus and MAX service, TriMet operates 268 LIFT vehicles, which provide door-to-door service for people with special needs. TriMet operates three bus operations and maintenance facilities and two rail operations and maintenance facilities. Table 2.1-1 summarizes TriMet’s fixed-route service. Overall, 90 percent of people within the TriMet district live within one-half mile of TriMet service. Table 2.1-1. 2016 Fixed-Route Service Summary Streetcar MAX LRT Frequent Bus Standard Bus Routes 2 5 13 64 Length (miles) 16 60 180 784 Current Ridership, Operating Revenue, and Operating Expenses On weekdays in FY2017, the TriMet system averaged 186,800 boardings on buses, 123,200 on light rail, and 1,800 on WES Commuter Rail. Streetcars averaged 15,000 boardings, the aerial tram averaged 11,000 boardings, and WES Commuter Rail averaged 1,700 boardings per day. Between fiscal year (FY) 2007 and 2017, TriMet annual fare revenue as a percentage of the cost of operation and maintenance improved from 33 percent to 37.4 percent and the average operations cost per boarding ride for the fixed route service increased from $2.34 to $3.16, reflecting inflation and service expansion to lower ridership areas and times. Cost per boarding ride for LRT, at $2.61, is lower than that for buses, at $3.43 (FY 2017). Southwest Corridor Light Rail Transit Impacts and Travel Demand Forecasting Results Report| May 31, 2018 1 2.2. Travel Behavior Metro’s travel demand forecasting model produced current estimates and future projections of travel behavior referenced in this report. The basic unit of measurement used in describing travel behavior is the “person trip,” which is a trip made by one person from a point of origin to a destination, via any travel mode. Several trip variables, including the origin, destination, mode and purpose of the trip, further describe travel behavior. Travel demand totals between districts or groups of transportation analysis zones (TAZ) help to discern travel markets and shifts in modes due to the differences between alternatives. The district-to- district travel demand totals are split into three groups: total person trips, transit work trips and total transit trips. Figure 2.2-1 shows the district boundaries used to summarize trip data for the Southwest Corridor Light Rail Project modeling. Districts one through seven comprise the SW Corridor. For 2015, the base year for the Draft EIS, the transportation facilities in the Southwest Corridor were estimated to carry 64,500 person trips between the corridor and the Portland Central Business District (CBD) on an average weekday. Of these, approximately 10,300 (16 percent) were on the transit system. Of 16,000 daily work trips between the corridor and the CBD, 5,500(34 percent) were on transit. 3. TRANSIT IMPACTS This section presents the impacts that the Southwest Corridor Light Rail Project would have on the transit system in the corridor. This section compares transit service characteristics, travel time, ridership, and reliability for the No-Build Alternative and the Light Rail Alternatives. Two full-length alternatives were modeled and analyzed for the transit analysis, one utilizing a Through Configuration, and one utilizing a Branched Configuration (see section 2.3.3 of the Draft EIS). The Through Configuration combines Light Rail Alternatives A1, B2, and C1; the Branched Configuration combines Alternatives A1, B2, and C5 (see Table 2.3-1 of the Draft EIS). The remaining light rail alternatives are addressed by geographic segment and are described in terms of change compared to the Through or Branched Configuration. 2 Southwest Corridor Light Rail Transit Impacts and Travel Demand Forecasting Results Report| May 31, 2018 3.1. District-to-District Travel Demand and Mode Choice 3.1.1. Total Person Trip Demand Total person trip demand indicates the total number of people traveling by auto, transit, bike, and walk between two areas. Identical person trip tables were used in modeling No-Build and Build alternatives, consistent with methodology used under