MTO Environmental Sustainability & Transportation 2 — Questions and Answers
Question 1: Which federal law requires states to consider environmental impacts when planning transportation projects?
- National Environmental Policy Act (NEPA) (Correct answer)
- Clean Water Act
- Surface Transportation Act
- Federal Highway Act
Correct answer: National Environmental Policy Act (NEPA)
NEPA requires federal agencies to assess environmental effects of proposed actions, including transportation projects, before decisions are made.
Question 2: What does a 'green corridor' in transportation planning typically refer to?
- A highway painted green for visibility
- A transportation route designed to minimize environmental impact and support biodiversity (Correct answer)
- A dedicated lane for hybrid vehicles only
- A corridor with reduced speed limits
Correct answer: A transportation route designed to minimize environmental impact and support biodiversity
Green corridors are transportation routes planned to minimize habitat fragmentation and environmental damage while supporting wildlife movement.
Question 3: Which transportation mode produces the least greenhouse gas emissions per passenger mile?
- Single-occupancy gasoline car
- Commercial airplane
- Bus transit
- Commuter rail (Correct answer)
Correct answer: Commuter rail
Commuter rail produces the least GHG emissions per passenger mile among these options due to high capacity and electric or efficient diesel operation.
Question 4: What is 'vehicle miles traveled' (VMT) reduction a key strategy for in transportation sustainability?
- Increasing highway capacity
- Reducing total distance driven to lower emissions and congestion (Correct answer)
- Measuring fuel efficiency standards
- Calculating toll revenues
Correct answer: Reducing total distance driven to lower emissions and congestion
Reducing VMT decreases transportation-related emissions, fuel consumption, and traffic congestion by encouraging alternatives to solo driving.
Question 5: What environmental benefit do wildlife crossing structures (overpasses/underpasses) on highways provide?
- They reduce vehicle speeds
- They prevent habitat fragmentation and reduce wildlife-vehicle collisions (Correct answer)
- They channel stormwater runoff
- They provide noise barriers for nearby communities
Correct answer: They prevent habitat fragmentation and reduce wildlife-vehicle collisions
Wildlife crossings allow animals to safely traverse highways, maintaining habitat connectivity and reducing the ecological impact of road fragmentation.
Question 6: How does urban heat island effect relate to transportation infrastructure?
- Highways absorb and re-emit heat, raising local temperatures (Correct answer)
- Electric vehicles produce excess heat in cities
- Traffic signals generate significant heat
- Tunnels trap heat underground
Correct answer: Highways absorb and re-emit heat, raising local temperatures
Asphalt roads and parking lots absorb solar radiation and re-emit it as heat, contributing to higher temperatures in urban areas compared to surrounding rural areas.
Question 7: What is the primary purpose of a Transportation Demand Management (TDM) program?
- To build more highways to meet travel demand
- To reduce single-occupancy vehicle trips through incentives and alternatives (Correct answer)
- To manage toll pricing on bridges
- To schedule freight deliveries more efficiently
Correct answer: To reduce single-occupancy vehicle trips through incentives and alternatives
TDM programs use strategies like carpooling incentives, transit subsidies, and telework policies to reduce the number of solo car trips and associated emissions.
MTO Environmental Sustainability & Transportation 2
Which federal law requires states to consider environmental impacts when planning transportation projects?