Transportation Management Plan
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TRANSPORTATION MANAGEMENT PLAN OR99E: Rockfall Mitigation Pacific Highway East MP 12.62- MP 13.36 Clackamas County Key #18769 Looking north on OR99E just south of railroad tunnel. Looking north on OR99E just north of Canemah. EP D A R N T O M G E Oregon Department of Transportation E N R T O Region 1 Traffic Unit O N F O I 123 NW Flanders Street T T R A A T NSPOR Portland, Oregon 97209 Prepared by: Review by: Thanh Tran Simon Eng, P.E. Traffic Analyst Traffic Analysis Team Leader RENEWAL DATE: 12-31-2017 September 14, 2017 TABLE OF CONTENTS Page 1 INTRODUCTION 1 1.1. PROJECT AREA BOUNDARIES 1 1.2. PROPOSED IMPROVEMENTS 2 1.3. TMP GOALS 2 2 PROJECT AREA CHARACTERISTICS AND OPERATIONS 2 2.1. ROADWAY CHARACTERISTICS 2 2.2. TRAFFIC VOLUMES 3 2.3. TRAFFIC OPERATIONS 3 3 FACTORS IMPACTING CONSTRUCTION STAGING 6 3.1. PROJECT SHCEDULE 7 3.2. PROPOSED IMPROVEMENTS AND IMPACTS TO TRAFFIC FLOW 7 3.3. ALTERNATE ROUTES 7 3.4. EXISTING VEHICLE RESTRICTIONS 7 3.5. ENVIRONMENTAL RESTRICTIONS 7 3.6. CONSTRUCTION NOISE REGULATIONS 8 4 POTENTIAL MOBILITY ISSUES 8 4.1. TRAFFIC MOBILITY DURING CONSTRUCTION 8 4.2. CONSIDERATION OF OVERSIZED VEHICLES 8 4.3. INPUT FROM THE PUBLIC AND STAKEHOLDERS 8 4.4. HOLIDAYS AND SPECIAL EVENTS 9 5 CONSTRUCTION STAGING 9 6 LANE CLOSURE RESTRICTIONS 10 7 TRAFFIC MANAGEMENT AND OPERATION STRATEGIES 11 7.1. PUBLIC INFORMATION AND OUTREACH 11 7.2. MOTORIST INFORMATION/ITS 11 7.3. CONSTRUCTION STRATEGIES 12 7.4. DEMAND MANAGEMENT 13 7.5. ATLERNATE ROUTE STRATEGIES 13 7.6. INCIDENT/EMERGENCY MANAGEMENT 13 8 INCIDENT MANAGEMENT PLAN 13 Draft Transportation Management Plan for OR99E: Rockfall Mitigation September 14, 2017 Page i 8.1. EMERGENCY COMMUNICATION PLAN 13 8.2. CONTINGENCY PLAN 14 9 MOBILITY COMMUNICATION PLAN 14 LIST OF TABLES TABLE 1: Existing Traffic Volumes 3 TABLE 2: Weekday and Weekend Traffic Volumes 4 TABLE 3: Existing 2017 AM & PM Peak Hour Traffic Operations 6 LIST OF FIGURES Figure 1: Vicinity Map 1 Figure 2: Existing 2017 AM and PM Peak Hour Volumes 3 Figure 3: 24-hr Traffic Flow on Northbound OR99E – Thursday through Sunday 5 Figure 4: 24-hr Traffic Flow on Southbound OR99E - Thursday through Sunday 5 APPENDIX • Existing 2017 AM and PM Peak Hour Volumes • 24-hr Volumes on NB & SB OR99E, north of Hedges Street • Decision Tree Form • Emergency Communication Plan • Contingency Plan Guidelines Draft Transportation Management Plan for OR99E: Rockfall Mitigation September 14, 2017 Page ii 1 INTRODUCTION The project primary goal is to improve safety for the traveling public by providing stabilization to the falling rocks and reduce the potential for future removal of any hazardous fallen rocks. The purpose of this Transportation Management Plan (TMP) is to address traffic impacts and provide operation strategies to be implemented during construction of the OR99E: Rockfall Mitigation project. It includes details behind the development of Traffic Control Plans (TCP) and other measures that will be put in place throughout construction to minimize disruptions to travelers and freight mobility without compromising public or worker safety and the quality of the work being performed. This TMP is a living document subject to additions and modifications throughout the life of the project. 1.1 PROJECT AREA BOUNDARIES The project site is located on the Pacific Highway East (OR99E), also known as SE McLoughlin Blvd, just south of downtown Oregon City and north of Canemah. The project consists of two locations identified by name and milepoint: (a) Tunnel Cut - located in the section between Tumwater Drive and railroad tunnel, just south of Main Street (M.P. 12.62- 12.87) and (b) North Canemah - located just north of Hedges Street along the Old Canemah Park (M.P. 13.15- 13.36). A vicinity of the project area is shown in Figure 1. Tunnel Cut MP 12.62-12.87 North Canemah MP 13.15-13.36 Figure 1: Vicinity Map Draft Transportation Management Plan for OR99E: Rockfall Mitigation September 14, 2017 Page 1 1.2 PROPOSED IMPROVEMENTS The main components of the project are listed below but not limited to the following: • Tree Removal • Perform rock slopes scaling • Install rock bolts • Repair slope mesh • Clear the catchment area and roadside ditch • Repave roadway in areas impacted by project as needed • Replace striping impacted by project as needed 1.3 TMP GOALS The primary purpose of the TMP is to address the construction related impacts of this project in a cost-effective and timely manner with minimal interference to the traveling public. Goals of this TMP include the following: • To describe the project construction footprint within the project limits. • To communicate any possible freight mobility construction delay factors. • To communicate what elements will be included in the project to mitigate for any anticipated disruptions to travelers and freight without compromising public or worker safety, or the quality of work performed. To accomplish these goals, the TMP incorporates the following elements: • Definition of project area boundaries • Roadway characteristics • Factors impacting construction staging • Potential mobility issues • Construction staging • Work zone lane restrictions • Traffic management and operation strategies • Incident management plan • Mobility communication plan 2 PROJECT AREA CHARACTERISTICS This section includes a summary of the existing transportation facility conditions within the project area relevant to this TMP, including roadway characteristics, traffic volumes and operations, other projects in the area and stake holders. 2.1 ROADWAY CHARACTERISTICS According to the 1999 Oregon Highway Plan, OR99E is a Regional highway, a federally designated Truck route, and a Reduction Review Route on the National Highway System. OR99E runs north-south along the east side of the Willamette River. Running parallel between the river and the highway is the UPRR railroad, which has an at-grade alignment that crosses over the highway at the north end of the Tunnel Cut section. OR99E runs Draft Transportation Management Plan for OR99E: Rockfall Mitigation September 14, 2017 Page 2 through a tunnel under the railroad just south of the signalized intersection at Main Street. The major connections to OR99E are OR213, I-205, OR43 and Main Street to the north and to the south is 2nd Street and South End Road. Within the project limits, OR99E has a posted speed limit of 30 mph from M.P. 12.74 (near 3rd Street) to the north and to the south of this point through Canemah is 40 mph. The project area of the rock slopes are both located on the east side of the highway separated by approximately half a mile. The northern Tunnel Cut section is located between two signalized intersections with Main Street to the north and 2nd Street is to the south. The southern North Canemah section is located along the Old Canemah Park, approximately 800 feet south of 2nd Street and just north of Hedges Street. Within the project limits, OR99E from 2nd Street to the north has two through lanes in each direction, except in the southbound direction where the inside southbound through lane (left lane) that turns into a left turn only lane at 2nd Street. To the south of 2nd Street intersection through Canemah, OR99E has one travel lane in each direction and a center two-way left turn lane, except for the northbound approach at 2nd Street which has two through lanes. The two northbound travel lanes develop from a single lane at approximately 950 feet south of 2nd Street intersection. 2.2 TRAFFIC VOLUMES The 2015 (2-way) annual average daily traffic (AADT) volumes and truck percentage on OR99E within the project area are summarized in Table 1. As shown, the volumes on the highway fluctuate within the project section, especially in the section between Main Street and 2nd Street. The increased in volumes are due to traffic getting off to and on from Oswego Highway (OR43) that crosses the Willamette River to the west side of town via Main Street and also traffic that comes from 2nd Street. Traffic volumes on OR99E decreased to the south of 2nd Street intersection. Table 1: Existing Traffic Volumes Milepoint Location Description 2015 AADT Truck% 12.35 South of 8th Street 18,300 6.5 12.54 North of Main Street (OR43) 23,100 6.5 12.58 South of Main Street (OR43) 23,900 6.5 13.02 South of S. 2nd Street 17,000 6.5 The weekday a.m. and p.m. peak hours turning movement counts were collected on OR99E at Main Street and 2nd Street in August 2, 2017. The peak hours for the OR99E corridor were determined to occur from 7:00 a.m. to 8:00 a.m. and 4:30 p.m. to 5:30 p.m. There were low pedestrian activities observed during the peak periods at the study intersections. In addition, the weekday and weekend bi-directional hourly traffic volumes were collected on OR99E at approximately 700 feet north of Hedges Street in August 3-6, 2017. The 2017 weekday a.m. and p.m. peak hour traffic volumes at the study intersections with existing lane configuration are shown in Figure 2 and the weekday and weekend hourly volumes are summarized in Table 2. The northbound and southbound hourly counts on OR99E were also depicted graphically in Figures 3 and 4, respectively. Draft Transportation Management Plan for OR99E: Rockfall Mitigation September 14, 2017 Page 3 Figure 2: Existing 2017 AM (PM) Peak Hour Volumes 1 1(1) 10(15) 2 Main St 135(545) 1 500(1205) 525(1100) 650(300) 3(20) (1)1 (1)1 2(1) OR99E (1)1 170(480) 40(60) 2nd St 895(665) 825(685) 2 1(1) 30(40) 60(65) - Traffic Signal XX(YY) – AM(PM) Peak Hour Volumes Table 2: Weekday and Weekend Traffic Volumes on OR99E