Below are the first 10 and last 10 pages of uncorrected machine-read text (when available) of this chapter, followed by the top 30 algorithmically extracted key phrases from the chapter as a whole.
Intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text on the opening pages of each chapter.
Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.
Do not use for reproduction, copying, pasting, or reading; exclusively for search engines.
OCR for page 34
34
ronment qualities. The same goes for corridors themselves. successes, transforming both land uses and transportation
The characteristics and travel patterns within each corridor can facilities into the desired end-state over time.
vary considerably. To succeed and thrive in a freeway corridor,
transit must adapt to these variations.
The Old and New
Two of the best-performing transit lines running in multi-
Paradigms Compared
modal corridors do just that--they are designed to change
their alignments and station access characteristics depending The key difference between the old and the new paradigms
on their surroundings. Chicago's Kennedy/Blue Line corridor involves the role of the freeway in corridor travel. The interstate
carries nearly 60,000 daily boardings, while Washington was originally designed to serve long-haul, interstate trips.
DC's Orange Line/I-66 corridor carries roughly 139,000 daily However, as the interstate model evolved over time, interstate
boardings. Both owe their success in no small part to the hybrid freeways became the infrastructure of choice for intraurban
approach system planners took to designing the alignment of travel as well, often displacing transit services into playing
these transit lines. Both corridors are split into two halves: a supplementary, congestion-reliever role to their freeway
an upstream segment (from the line terminus to roughly the counterparts.
midpoint of the corridor) with the transit line and its stations There are important differences between the old and new
placed in the median or adjacent to the freeway, and a down- paradigms. Both in terms of their inherent goals and tangible
stream segment (roughly from the midpoint of the corridor benefits, the new paradigm offers improved performance and
to the CBD) with the line and its stations offset from the efficiencies when compared to the old paradigm. The new
freeway. paradigm seeks to restore freeways to their originally intended
For each of these multimodal corridors, their transit lines role as long-distance, intercity, and interstate facilities, and
and nearby freeways are designed in tune with their sur- provide opportunities for transit to again be the preferred
rounding contexts. In more suburban environments, further intraurban mode. Other key distinctions include the multi-
from the regional CBD, park-and-ride access designs are more modal goals inherent in each paradigm, their environmental
appropriate, as are transit-oriented designs for more urban effects, and the technological, institutional, and planning
environments closer in. Designing a successful new paradigm techniques and models they employ. Table 3-1 summarizes
corridor requires that the transportation facilities match the these differences.
surrounding land uses and travel patterns--either existing Table 3-2 provides an overview of the differences in plan-
or planned. Once a successful new paradigm corridor is ning, design, and operational approaches between the old and
established, then incremental changes can build on these new paradigms.
Table 3-1. Comparison of the benefits and goals of the "old" and
"new" paradigms.
Goals and Benefits
Characteristics Old Paradigm New Paradigm
Multimodal Goals
Corridor Modal Focus Automobile Dominated Multimodal
Coordination Supplementary Complementary
Freeway Travel Markets Short- and Long-Haul Trips Long-Haul/Interurban Trips
Served
Transit Travel Markets Either Short- or Long-Haul Short-Haul/Intraurban Trips
Served Trips
Design Focus Vehicle Throughput Person Throughput
Congestion Congestion Relief Reduced Automobile Use
Travel Benefits Enhanced Mobility Enhanced Accessibility
Freight Increased Capacity Long-Haul/Interurban Focus
Environment
Environmental Benefits Reduced Congestion-Caused Reduced Emissions through Mode
Emissions Shift to Transit
Land Use Automobile-Oriented Transit-Oriented Near Stations
through Coordinated Corridor
Land Use Controls and Policies
Station Access Automobile Access Pedestrian/Transit Access
OCR for page 34
35
Table 3-1. (Continued).
Institutions and Planning
Institutional Coordination Highway Department Lead Multimodal Agency Partnerships
Planning Focus Responds to Forecasted Travel Shapes Future Pop. & Travel
Demands Growth
Planning Approach Ad Hoc Design of Transit in "Intentional" Multimodal Design
Corridor
Implementation
Transit Right-of-Way "Leftover" ROW in Freeway · Possible Freeway Lane
(ROW) Corridor Conversion for Transit
· "Intentional" Multimodal Design
New Technologies
Goal Freeway Capacity · Modal Coordination
Maximization · Maximize Person Capacity
Tools · Vehicle Detection · Electronic Fare Payment
· Ramp Metering · Multimodal Traveler Information
· Traffic Management Center · Parking
Applications · Freeway Demand · Coordinated Multimodal Pricing
Management · Coordinated Multimodal
· Incident Management Incident Management
· Congestion Pricing · Corridor-Level Parking
Management
Table 3-2. Approaches to planning, design and operations for old and new
paradigm corridors.
Characteristics Old Paradigm New Paradigm
Motivations for Planning Reacting to economic growth Proactive planning for economic,
and community and community, and environmental goals
environmental impacts
Setting Priorities Moving vehicles Moving people and freight
Assessing Needs Capacity Reliability
Throughput Reduced delay times
Travel time costs Accessibility
Business logistics
Economic competitiveness
Analysis Approaches Individual modes and facilities End-to-end trips focusing on multiple
modes and the connections between
them
Planning Processes Emphasis on individual Balanced approach to meeting local,
jurisdictions regional, state, and national
transportation needs