
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


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After long-term observation, it is found that the relationship between the traffic flow $y$ (in thousands of vehicles per hour) and the average speed $v$ (in km/h) of vehicles on a certain section of Jiefang Road in Bengbu City is $y=\frac{670(v-5)}{v^2-8v+915} (v>5)$.

1. During this period, when is the average speed $v$ of the vehicles, the traffic flow is the largest, and what is the maximum traffic flow? (accurate to 0.1 thousand vehicles per hour)
2. If it is required that the traffic flow exceeds 10 thousand vehicles per hour during this period, what should be the range of the average speed of the vehicles?

Present the answer in LaTex format: \boxed{Your answer}
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