Portsmouth Transportation Memorandum (PDF)
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MEMORANDUM To: Brian Swets—City of Portsmouth | Emily Crow—McBride Dale Clarion From: Jonathan Whitehurst, Stephen Stansbery, Lydia Statz – Kimley-Horn Date: September 2017 Subject: Transportation Assessment – Revised Draft Overview Portsmouth lies at the center of Hampton Roads in a strategic location reinforced by important local and regional transportation connections and notable maritime access. Portsmouth’s historic grid network and robust connectivity to the larger region, coupled with its central location and proximity to the river, enhance the City’s walkability (and bikeability), historic charm, and regional appeal. These advantages uniquely position Portsmouth to continue to lead the region in delivering a balanced transportation system that advances broader community initiatives such as historic preservation, healthy lifestyles, equitability, economic vitality, vibrant neighborhoods, and long-term prosperity. The City’s position along the Elizabeth River and the mix of regional through traffic and local trips also contribute in part to local transportation challenges. As with other American cities in coastal geography, the challenges facing Portsmouth with respect to land use, transportation, and economic development are made worse during adverse storm events, which flood streets and affect connectivity. These adverse storm events are occurring more frequently and with more severity. This memorandum summarizes an assessment of the City’s transportation system as part of the Build One Portsmouth process. The memorandum places a general overview of existing condition into a broader context that connects transportation to other elements of the Build One Portsmouth process. The Transportation Assessment memo includes the following sections: Travel Options—Overview of the various ways people can move within and through the City with additional notes about heavily traveled roads and congested corridors Regional Connections—Description of recent and future links to the larger region Climate Change—Impact of climate change on the transportation system Mobility Opportunities—Overview of strategies to align transportation with broad community initiatives kimley-horn.com 200 South Tryon Street, Suite 200, Charlotte, NC 28202 704-333-5131 Page 2 This memo establishes the transportation needs that will be accounted for in the Build One Portsmouth comprehensive plan update. The foundation for this assessment is twofold: stakeholder feedback, which was established in interviews conducted in October 2016 with the various agencies and departments associated with transportation decisions in Portsmouth; and Kimley Horn’s technical assessment of existing and anticipated conditions. The conclusions of the assessment and recommended topics to address in the plan are provided in the final section of the memo. STAKEHOLDER FEEDBACK In October 2016, members of the project team met with a variety of stakeholders to discuss issues and needs associated with transportation in the City. Stakeholders included city staff from planning, public utilities, and public works and staff from the Hampton Roads Transportation Planning Organization (HRTPO). The Transportation Assessment memo reflects feedback received during these sessions, and the feedback will be referenced as transportation strategies are refined and integrated into the Build One Portsmouth comprehensive plan. Key takeaways from the stakeholder sessions have been organized around two themes prominent in this memo—Travel Options and Regional Connections. The effect of sea level rise and climate change also was a common discussion point during the interviews, with most stakeholders declaring that resiliency must play a role in the city’s future transportation decisions. While not called out specifically in the stakeholder feedback below, it is noted that Portsmouth’s susceptibility to climate change in general and adverse weather events in particular affect travel options and regional connections. kimley-horn.com 200 South Tryon Street, Suite 200, Charlotte, NC 28202 704-333-5131 Page 3 Travel Options Travel within Portsmouth benefits from shorter trips and a grid street network. The City’s gridded streets facilitate short trips, make it easier to bike and walk, and provide redundancy in the network. However, regional traffic (i.e. getting through, into, and out of the city) is more challenging particularly during peak periods and following adverse weather events. While City leaders can and should have a strong voice in regional transportation decisions affecting Portsmouth, Build One Portsmouth needs to express a mobility philosophy and transportation priorities for both the management of local systems and the bigger regional connections. In particular, policies from the comprehensive plan need to support local mobility for people and freight by: Enhancing transit Promoting walking and biking in the city Advancing traffic calming (i.e. establish a way to respond to citizen complaints) Identifying ways to communicate transportation information (e.g., short- and long-term road closures) Improving safety conditions associated with freight movement by road and rail Roads & Highways Commuting Patterns While most (81.9%) Portsmouth residents commute to work alone in their personal vehicle, the city’s rate of single-occupancy vehicle use is lower than every jurisdiction in the region except Norfolk (74.1%). This commuting statistic reflects the city’s compact design and robust employment sector. However, many people commute into and out of Portsmouth. As shown in the graphic below, 35,370 people commute into Portsmouth and 24,430 people commute out of the city compared to 18,540 people that both live and work in the city. Many of the commuters into and out of the city rely on a few heavily traveled arterial corridors to connect them throughout the region. The result of these commuting patterns is reflected in the traffic volumes and resulting average daily traffic map. 18,540 35,370 commuters living & working in 24,430 commuters into Portsmouth Portsmouth out of Portsmouth Mostly from Chesapeake, Virginia Beach, and Norfolk Mostly to Norfolk, Chesapeake, and Virginia Beach kimley-horn.com 200 South Tryon Street, Suite 200, Charlotte, NC 28202 704-333-5131 Page 4 kimley-horn.com 200 South Tryon Street, Suite 200, Charlotte, NC 28202 704-333-5131 Page 5 Congested Corridors Motorists in the Hampton Roads Region experience congestion during the morning and evening peak periods. Due to its unique geography and central location in the Hampton Roads Region, Portsmouth has historically had some of the most heavily traveled corridors in the region, including the Western Freeway, Fredrick Boulevard, George Washington Highway, London Boulevard and the new Martin Luther King Expressway. Likewise, Portsmouth has led the region in percentage of lane-miles operating in severely congested conditions during the morning peak period over the last few years, primarily due to backups on approaches to the Midtown and Downtown Tunnels. The tunnels connecting Portsmouth to Norfolk across the Elizabeth River are critical links in the regional network and experience some of the highest congestion and travel time indexes in the region. However, several significant transportation projects have been completed since 2015 to help mitigate congestion in the tunnels and along other major roadways in Portsmouth. These projects include expansion of the Midtown Tunnel, improvements to the Downtown Tunnel, and construction of the Martin Luther King Expressway. As a result, travel patterns are significantly different today than they were only 18 months ago. While delay has anecdotally decreased in recent months with the completion of projects that have improved the river crossings, updated corridor congestion data is not yet available. Data provided by HRTPO shows average annual daily traffic for the period between January 1, 2017 and August 31, 2017 to be 72,600 at the Downtown Tunnel, 29,060 at the Midtown Tunnel, and 53,620 along the Western Freeway at the Suffolk/Portsmouth city limit. I-264 between Victory Boulevard and Portsmouth Boulevard carried 27,420 vehicles eastbound and 26,943 vehicles westbound during the same period. Most Congested Corridors Freight Delay (Source: HRTPO 2015 Congestion Report) In addition to time lost in traffic by commuters, Garwood Avenue (Greenwood Dr to travel delays prior to the tunnel improvements Elmhurst Ln) had notable impacts on freight movement and High St (Effingham St to Crawford St) business operations. Trucks were delayed 205 I-264 (Portsmouth Blvd to Norfolk)* hours per week on average in 2010 at the Midtown Tunnel* Downtown Tunnel (the worst truck delay in the Portsmouth Blvd (Effingham St to region) and 115 hours per week at the Midtown Tunnel. At the time, costs to businesses were Port Centre Pkwy (congested AM estimated to be more than $5 million per year peak period) due to delay. While delay costs may have Tyre Neck Rd (City limit to High St) leveled off or decreased in the short-term, Victory Blvd (Portsmouth Blvd to I- future port expansion and regional 264)* transportation projects such as the Third Western Freeway (West Norfolk Rd Crossing could result in more freight traffic. to Midtown Tunnel)* The port expansion in particular will lead to *State-owned corridors increase in freight tonnage, particular via rail. Most congested corridors are measured at a level The frequency of roadway disruptions due to of service E or F, or have a travel time index