Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Brainstorm at least 5 possible solutions to the given problem.

### Input:
Problem: Traffic congestion in urban areas.

### Response:
1. Implementing high-occupancy vehicle lanes to encourage car sharing.
2. Introducing ride-sharing programs.
3. Incentives for individuals to use public transportation.
4. Improving infrastructure for bicycle and pedestrian access.
5. Restricting access to certain areas based on vehicles’ emissions levels.