“The environment is where we all meet; where we all have a mutual interest; it is the one thing all of us share. It is not only a mirror of ourselves, but a focusing lens on what we can become.” Green Mobility Challenge ~ Lady Bird Johnson Team 1765 | November 15, 2011 Manchaca Expressway Tom Ennis, Citizen
19
Embed
Team 1765 Final Presentation for the Green Mobility Challenge
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
“The environment is where we all meet; where we all have
a mutual interest; it is the one thing all of us share. It is
not only a mirror of ourselves, but a focusing lens on what
we can become.”
Green Mobility Challenge
~ Lady Bird Johnson
Team 1765 | November 15, 2011
Manchaca Expressway
Tom Ennis, Citizen
“We are the road-buildingest nation on earth.....
Your creations, your works, are public property, open to all for
the service of all, and inevitably, they affect the lives of the people
for better or for worse.
Therein lies both the glory and the burden of road-building.
In disturbing the turf of this beautiful country, we have a special
obligation – not only in terms of land use, but also in aesthetic
sense.
We are obliged to leave it looking as good if not better than the way we found it.”
~ Lady Bird Johnson (remarks made Feb 23, 1966 to the American Road Builders
Association)
THINK ABOUT IT
We set out to design a transportation facility that fits seamlessly into the environment through which it passes, serves as a destination rather
than merely a means of travel, and ultimately brings the people of Central Texas together
EMULATE NATURAL HYDROLOGY
Non-Karst Bioswale Karst Bioswale
We propose to shift from traditional pipe and store “Stormwater Management” to what we’ve coined “Regenerative Hydrologic
Recycling”
BIOSWALES
Capture and reduce total stormwater volume and reduce runoff flow rates using prepared soil mixes and native vegetation plantings of
grasses and forbs
RECONNECT PEOPLE WITH NATURE A road can serve as a destination, a place of observation, a subtle
WILDLIFE AND HABITATThe roadway design integrates wildlife habitat and movement by
preserving as much habitat as possible and restoring habitat damaged during construction
ORCHESTRATE, INVOLVE AND INVIGORATE
Manchaca Expressway
Veloway
Earthshare of Texas
Hill Country Inline Club
Ladybird Johnson Wildlife Center
By partnering with local advocacy agencies during the design phase and as part of the overall monitoring and operation phases, longer
lasting relationships can be formed to spread the word about corridor innovations
Our context-sensitive design incorporates distinctive elements and conventional elements put together in non-traditional ways
“…We are obliged to leave it looking as good if not better than the way we found it”
FROM PHILOSOPHY TO REALITY
PARK & RIDE
MULTIMODAL DESIGN CONCEPTOur proposed multimodal concept includes a multi-use path through the corridor and a “green” park and ride lot located at the junction of
FM 1626 and the Manchaca Expressway
OLD BLISS SPILLAR ROAD OVERPASS We propose to minimize the grade changes throughout the length of the corridor. In addition, we reversed the schematic concept at Bliss
Spillar Road.
Former profile
Existing ground
Proposed flatter profile
Old Bliss Road
Overpass
Overpass plan
BEAR CREEK BRIDGE DESIGN CONCEPTOur design eliminates piers and construction within the natural
stream channel and includes restoration to encourage natural flood controls, creek meandering and wildlife passage
200’
50’50’ 50’ 50’
200’ 200’
FLINT RIDGE CAVE ELEVATED MULTI-USE PATH/DECK
By covering the roadway with the deck/trail system we prevent water from running into the Flint Ridge Cave surface drainage, creating a
community asset and transforming the project from just another roadway into a destination
FLINT RIDGE CAVEThink of it as a living laboratory accessible via the path yet
removed from the fragile environment beneath
ELEVATED MULTI-USE PATH/DECK
INITIAL INVESTMENT = LONG TERM COST SAVINGS
Without extensive mitigation strategies in place, environmental damage potential is a huge intangible cost. Our Low Impact
Development long-term benefits are invaluable.
Our Design
Average pavement width (reduced grade) 74’ x 3.6mi x $3/SF porous asphalt = $4.2m
$35/LF bioswales x 3.6 mi = $650k
115’ average disturbed earth width x 3.6mi x $2/SF = $4.4m
Average pavement width: 124’ x 3.6 mi x $1/SF asphalt = $2.4m
$375/LF storm drain x 3.6 mi = $7.2m
300’ average disturbed earth width x 3.6mi x $2 SF = $11.5m in various earth-related issues
+50% for fixtures = $1.2m Bear Creek structure = $6m Bliss Road structure = $2m
Total = $30m
Year 1Year 5
Year 10Year 15
Annual Operating & Maintenance Costs
Schematic Our Design
A green road, a lean roadA pollution reducing clean roadWith so many roads and places to go, think of this one in a different way~Walking the trail, riding a bike, looking out of your window seeing natural delightThis road will be different, different indeed, sustainable, obtainable and cheaper you see What once was just pavement is now something new, a community asset for me and for you