もう一度 and また: one more request, again, and added information
Compare requesting another explanation, suggesting a later meeting, and using また to add a property to a description.
Doing an action one more time
もう一度, read もういちど, means one more time. もう一度説明してください。 requests another explanation.
もう一度読んでみます。 says that the person will try reading it once more. It does not report that the next reading has already been completed.
Meeting again and adding information
また can mean again or also. また来週会いましょう。 suggests meeting again next week.
この道は静かです。また、駅にも近いです。 says that the street is quiet and is also close to the station. また adds another property to the preceding information.
The total count and the next action
もう一度お願いします。 requests one more occurrence. To determine whether the total since the beginning will be two, the earlier number of attempts must also be known.
また連絡します。 says that the person will get in touch again. It specifies neither a clock time nor the total number of contacts.
Does また in この道は静かです。また、駅にも近いです。 report walking along the street again?
Show the answer and why
No. It adds proximity to the station to the information that the street is quiet. No repeated walk is reported.