From I-70 to Md 26
Total Page:16
File Type:pdf, Size:1020Kb
FROM I-70 TO MD 26 APRIL 2018 Figure 1.1 – Project Area 1 2 TABLE OF CONTENTS Chapters 4.5 Corridor Speed 2040 No Build AM ............ 30 4.6 Corridor Speed 2040 No Build PM ............. 30 Executive Summary ........................................ 3 4.7 Corridor Speed 2040 Four-Lane AM .......... 31 01. Introduction .................................................... 9 4.8 Corridor Speed 2040 Four-Lane PM .......... 31 02. Corridor Context .......................................... 13 4.9 Crash Type Bar Graph .................................. 33 03. Transportation Network .............................. 19 5.1 Corridor Improvement Locations: 04. Corridor Analysis .......................................... 25 Corrdior Segments ....................................... 42 05. Corridor Concepts ........................................ 37 5.2 Corridor Improvement Locations: 06. Recommendations ....................................... 49 D1-D12 .......................................................... 43 5.3 Corridor Improvement Locations: Figures M1-M6 .......................................................... 44 1.1 Project Area .................................................... 1 ES-1 4-Lane Divided Highway ............................. 4 Tables ES-2 MD 32 Planning Study from I-70 to MD 26 2.1 Civic Amenities (Carroll County) ................ 16 Howard County Segment ........................... 5 2.2 Civic Amenities (Howard County) .............. 16 ES-3 MD 32 Planning Study from I-70 to MD 26 2.3 Stream Crossings Along MD 32 .................. 17 Carroll County Segment ............................. 7 4.1 Average Travel Time .................................... 25 1.2 MD 32 Planning Study Concept 4.2 Existing 2016 Intersection LOS ................... 27 Development and Analysis Process ........... 11 4.3 Forecasted Traffic Summary ....................... 32 3.1 Corridor Character Map .............................. 21 5.1 Corridor Segments ....................................... 39 3.2 Existing Bicycle and Pedestrian Map ......... 22 5.2 Intersection ................................................... 40 3.3 Transit Routes ............................................... 23 5.3 Access Consolidation ................................... 40 3.4 Recent Projects ............................................. 24 5.4 Miscellaneous Concepts .............................. 41 4.1 Existing Average Speed (AM) ..................... 26 5.5 Four-Lane Corridor Vision Concepts .......... 41 4.2 Existing Average Speed (PM) ...................... 26 5.6 Summary of Potential Impacts ................... 47 4.3 Corridor Speed 2025 No Build AM ............. 29 4.4 Corridor Speed 2025 No Build PM ............. 29 Maryland Department of Transportation MD 32 Planning Study From I-70 to MD 36 April 2018 1 2 EXECUTIVE SUMMARY Introduction Identified Issues The Maryland Department of Transportation MD 32 is a major commuter corridor. While most State Highway Administration (MDOT SHA), intersections currently operate acceptably, the working cooperatively with Howard and Carroll heavy peak hour traffic volumes make it difficult Counties, has undertaken the MD 32 Planning for drivers turning to and from MD 32. The Study to evaluate the transportation needs of the average speed throughout the study corridor MD 32 corridor – which includes approximately during peak periods is 10 mph less than the posted 7.2 miles along MD 32 between I-70 in Howard speed limit of 50 mph, resulting in travel time County and MD 26 (Liberty Road) in Carroll delay and congestion. Traffic modeling shows that County, Maryland. The purpose of the study by 2040, peak hour travel speeds may slow further was to develop a long-term vision for managing to an average speed of approximately 30 mph. future traffic, while identifying short-term safety However, the entire corridor is not expected to and operational improvements that would exceed its capacity until beyond 2040. address more immediate needs and support economic development opportunities. This is Crash data for the period of 2012 to 2014 reveal consistent with regional and local plans calling that crash rates are below the statewide average for widening the corridor from two to four lanes for similar types of roadways. Rear-end collisions in the future. This effort included public outreach are the most common crash type, accounting as well as input from area stakeholders. for 36% of all crashes, which is indicative of a congested roadway. The westbound I-70 ramps in Howard County and the MD 26 (Liberty Road) Study Methodology intersection in Carroll County are the locations The analysis consisted of three main phases: The with the greatest crash volumes as well as the initial phase focused on gathering information, heaviest traffic volumes and turning movements. engineering data, and environmental data There are a significant number of access points for the study area. This also included soliciting along MD 32. Although driveways do not feedback from the public and acquiring existing generate significant volumes of traffic, they are a and future conditions data. The second phase source of unexpected turning movements that can consisted of analyzing the data, identifying have an impact on traffic flow and safety. the transportation needs, and developing conceptual solutions to address those needs. The varying typical section along MD 32 influences The third and final phase consisted of analyzing driver expectations and may contribute to varying the proposed concepts to prioritize their traffic flow. The roadway changes from divided to projected effectiveness. This was based on undivided, and from two lanes to three- and four- safety and operational data, along with lane sections with and without shoulders. Though measures of effectiveness – such as improvement there are shoulders along most of the corridor, to access, and compatibility with long-term many areas do not have bicycle compatible growth projections. shoulders. Sidewalks are provided only in the segment between MD 26 (Liberty Road) and The MD 32 Planning Study was conducted Piney Ridge Parkway/Macbeth Way, and at in accordance with the FHWA Planning and signalized intersections within Sykesville which Environment Linkages (PEL) Guidelines. PEL contain crosswalks. represents a collaborative and integrated approach to transportation planning that permits the use of information from this study as a basis for National Environmental Policy Act (NEPA) planning and evaluation. 3 4 and analysis of the concepts will be necessary prior to EXECUTIVE SUMMARY Four-lane Corridor Vision implementation. The top priorities to be addressed in The ultimate vision for MD 32, as identified in the study corridor include: local master plans, includes widening MD 32 to • Howard County from I-70 to MD 99: Reconfigure a four-lane divided roadway. However, based I-70 ramp intersection, extend turn lanes and on current traffic forecasts, the entire corridor provide median barrier to reduce weaving conflicts will not require four lanes until beyond the and improve park & ride access. Approximate future design year 2040. A corridor concept and construction costs range from $3.2 to $3.5 Million. typical sections were developed to ensure that (See Figure ES-2 on the following page for future roadway work, new development or mapping of this segment). redevelopment is compatible with the ultimate vision. • Carroll County from 2nd Street to Main Street: Improve intersection geometry, extend turn lanes, The four-lane corridor concept developed has modify access and evaluate signal warrant at Main been broken into three phases, each with a Street. Approximate construction costs range from similar proposed typical section concept (see $2.5 to $2.8 Million. (See Figure ES-3 on page 7 for Figure ES-1). Phase C1 is the Howard County mapping of this segment). portion of the corridor and Phases C2 and C3 are • MD 32 / MD 26 intersection: Identify intersection the segments within Carroll County. The segment improvements. MDOT SHA has begun a from Springfield Avenue to Piney Ridge Parkway supplemental study of this intersection to identify /MacBeth Way (Concept C3) is identified as the potential concepts that would address the segment first expected to need widening based operational and safety needs. Initial cost estimates on future traffic operation projections. are in the range of between $3.3 and $3.8 million. Operational Improvements The design of a second northbound travel lane, a two-way left turn lane, and auxiliary The study recommendations include a list of access lane improvements is underway for MD 32 consolidation and intersection concepts to improve between Main Street and Macbeth Way. These safety and roadway operations, and address property enhancements will support the National Guard access needs throughout the corridor. While the Readiness Center at the Warfield Complex. forecasted traffic analysis shows that a full corridor Additional recommendations include reducing the upgrade to a four-lane divided highway will not be number of access points through consolidation, needed until at least 2040, shorter term improvements additional turn lanes and auxiliary lanes, and should be designed to be compatible with the pavement marking improvements. These ultimate four-lane vision. The concepts are a guide for improvements can be implemented incrementally implementing improvements in the MD 32 corridor over time as opportunities arise and funding that will improve safety and operations and create a