Answer:
The Bike lane
Explanation:
Your putting the bikers in danger by putting them on the side of the road. Also, the bikers might not be experienced bikers. You don't know who is inside the car and if they have a bad record, so they can easily hit the bikers. 600 to 800 bikers die each year because of cars.
He claims that vaulting ambition is his only motivation for the assassination.
Although he was ambitious before he talked to the witches, after hearing the prophecy (and after his wife goaded him into it), he decided to kill the king and become the next ruler himself. After that, both his paranoia and ambition only grew stronger and led him to his demise.