Summary Report: Peer Workshop on Integrating Climate Change into the Transportation Planning Process
Global Climate Change & Transportation: State of the Practice
Cynthia Burbank
National Planning and Environment Practice Leader
Parsons Brinckerhoff
Climate Change Workshop for MPOs and DOTs
October 27, 2008
Seattle, WA
Disclaimer: Much of the information presented is based on PB work for NCHRP 20-24(59). Contractor's work is in progress and is not a NCHRP report nor does it represent the panel's views. The NCHRP work is intended to inform AASHTO members' policy-development discussions and does not include making recommendations on matters of policy.
GHG Targets Are Daunting
| Climate scientists |
80% below 1990 by 2050 |
| California, Montana, Florida |
80% below 1990 by 2050 |
| Oregon |
75% below 1990 by 2050 |
| Massachusetts, Vermont, New Hampshire, Connecticut, Maine, Rhode Island |
75-85% below 2001 by 2050 |
| Colorado |
80% below 2005 by 2050 |
| New Mexico |
75% below 2000 |
| Climate Security Act (Lieberman-Warner) S.2191 |
Up to 66% below current levels by 2050 |
| Global Warming Reduction Act (Kerry-Snowe) S.485 |
62% below 1990 by 2050 |
| Climate Stewardship and Innovation Act (McCain-Lieberman) S.280 |
60% below 1990 by 2050 |
| United Kingdom |
60% below 1990 by 2050 |
Transportation is 28% of .U.S. GHG – and Rising

Highway Vehicles Account for 78% of Transportation C02 Emissions
U.S. Transportation Carbon Emissions by Mode, 2004 (Million metric tons CO2)

Many States Are Developing Aggressive Climate Action Plans
State and Local Participation in Selected Climate Change Initiatives
Preparred by the Commission on Energy and Commerce staff - February 2008
State Climate Action Plans – Transportation Elements are All over the Map
| State |
Year |
Vehicle |
Low Carbon Fuels |
Smart Growth and Transit |
Other |
| AZ |
2020 |
40% |
7% |
25% |
28% |
| CA |
2020 |
54% |
6% |
38% |
2% |
| CO |
2020 |
40% |
26% |
22% |
13% |
| MT |
2020 |
61% |
24% |
8% |
7% |
| NM |
2020 |
31% |
21% |
16% |
31% |
| OR |
2025 |
80% |
14% |
6% |
0% |
| WA |
2020 |
8% |
23% |
64% |
5% |
| MN |
2025 |
15% |
35% |
25% |
25% |
| NC |
2020 |
35% |
12% |
38% |
15% |
| SC |
2020 |
14% |
55% |
29% |
1% |
| CT |
2020 |
51% |
38% |
8% |
2% |
| ME |
2020 |
53% |
25% |
21% |
1% |
| MD |
2025 |
24% |
12% |
45% |
20% |
| NY |
2020 |
59% |
11% |
27% |
4% |
| PA |
2025 |
45% |
36% |
18% |
0% |
| RI |
2020 |
46% |
10% |
31% |
14% |
| VT |
2028 |
21% |
14% |
49% |
17% |
Transportation GHG Reduction is a Four-legged Stool
The 3-legged stool:
The 4th leg:
- Vehicle/System Operations
|
 |
1st & 2nd Legs: Vehicles & Fuels
- 50% cut in GHG/mile is feasible by 2030 from conventional technologies and biofuels
- By 2050, almost complete decarbonization of transport vehicles/fuels is a "realistic ambition," with advanced technology/fuels
- Electric and hydrogen fuel cell vehicles are promising paths to decarbonization – but many technology and economic issues must be overcome
3rd Leg: VMT
Slowing U.S. VMT growth to 1% annually may be necessary to meet GHG targets

4th Leg: Vehicle/System Operations
10-20% LDV GHG reduction potential:
- Manage speed (40-50 MPH is optimal)
- Reduce congestion, accel-decel
- Encourage "eco driving"
- Use LRR tires, inflated optimally
- Minimize weight and drag
Other Strategies: Federal Cap and Trade Legislation
S.2191 (Lieberman-Warner):
- Imposes a declining cap on GHG for power plants, oil importers and refiners, industrial sources
- Reduces U.S. GHG 66% below 2005 levels by 2050
- Has lower effect on transportation GHG
- Increases energy prices, with gas prices $1.40 higher by 2050
- Allocates $171 billion to transit over 38 years
- Lowers U.S. GDP 0.9-3.8% in 2050
Other Strategies: Pricing
- Higher energy prices are essential to promote energy conservation and new technologies in all sectors
- In transport, pricing can be powerful:
- PAYD Insurance
- Mileage fees
- Parking pricing
- Congestion pricing
- Vehicle "feebates"
Other Strategies: Land Use
- "It is realistic to assume a 30 percent cut in VMT with compact development."
- "... smart growth could ...reduce total transportation-related CO2 emissions from current trends by 7 to 10 percent as of 2050."
- Assumes:
- 67% of development in place in 2050 is new or rehab
- 60-90% of that development is "smart growth" (equivalent to 15 housing units per acre)
-- "Growing Cooler" by ULI, CCAP, et al, 2007
Other Strategies: Transit
Transit serves 1% of PMT and 0% freight in the U.S.
APTA: Transit reduced GHG by 6.9 MMT in 2005* (1/3 of 1% of U.S. transportation GHG)
European Ministers of Transport caution:
"Modal shift policies are usually weak in terms of the quantity of CO2 abated .... Modal shift measures can be effective when well targeted, particularly when integrated with demand management measures. They can not, however, form the corner-stone of effective CO2 abatement policy....."
* APTA includes 3.0 MMT reduction for transit's effect on congestion reduction
Cost Effective Strategies are Crucial – Now More than Ever

Comprehensive policies could cut U.S. transportation GHG in half by 2030.
-- David Greene and Andreas Schaefer, for Pew Center

European Council of .Ministers of Transport (2006)
- "The most effective measures available include fuel taxes, vehicle and component standards, differentiated vehicle taxation, support for eco-driving and incentives for more efficient logistic organization, including point of use pricing for roads. "
- "More integrated transport and spatial planning policies might contain demand for motorized transport."
- Mode shifts ... can not ... form the corner-stone of effective CO2 abatement policy and the prominence given to modal shift policies is at odds with indications that most modal shift policies achieve much lower abatement levels than measures focusing on fuel efficiency."
- "Ultimately higher cost energy sources .... will be required if there are to be further cuts in transport sector CO2 emissions."
Climate Adaptation Is as Important as GHG Reduction
- Key reports on adaptation: 2008 TRB report, ongoing FHWA Gulf Coast study, 2008 risk framework for UK Highways Agency.
- Risks include rising sea level, rising temperatures, more intense storms, increased flooding, drought in some areas, emergency evacuations, etc..
- "The impacts... will be widespread and costly in both human and economic terms and will require significant changes in the planning, design, construction, operation, and maintenance of transportation systems." -- TRB Special Report, March 2008
- 13 DOTs actively working on adaptation, 15 discussing it, 24 no action -- FHWA survey, Fall 2008