Dynamic frequencies

Figure out a way to let users select the time of travel so frequencies can be more relevant.

B Line Service period | Frequency
-- | --
Weekday rush hours | Every 10–15 minutes
Weekday daytime | Every 10–15 minutes
Weekday evening/night | Every 10–15 minutes, until about 1 a.m.
Saturday | Every 10–15 minutes
Sunday | Every 10–15 minutes

Service period | Green Line | A Line BRT | B Line BRT
-- | -- | -- | --
Weekday rush hours | Every 12 min | Every 10 min | Every 10 min
Weekday daytime | Every 12–15 min | Every 10 min | Every 10 min
Weekday evening | Every 15 min | Every 10 min | Every 15 min
Weekday late night | Every 30 min | Less frequent than 10 min | Every 15–30 min
Saturday daytime | Every 12–15 min | Every 10 min | Every 10 min
Saturday evening/night | Every 15–30 min | Every 10 min, then less frequent late | Every 15–30 min
Sunday daytime | Every 12–15 min | Every 10 min | Every 10 min
Sunday evening/night | Every 15–30 min | Every 10 min, then less frequent late | Every 15–30 min

Service period | Route 63 | Route 74 | Route 65 | Route 83 | Route 72
-- | -- | -- | -- | -- | --
Weekday rush hours | Every 15 min | Every 20 min | Every 30 min | Every 30 min | Every 30 min
Weekday daytime | Every 10 min | Every 20 min | Every 30 min | Every 30 min | Every 30 min
Weekday evening/night | Every 15–30 min | Every 20–30 min | Every 30–60 min | Every 60 min at night | Every 30 min
Saturday daytime | Every 15–20 min | Every 20 min | Every 30 min | Every 30 min | Every 30 min
Saturday evening/night | Every 20–30 min | Every 30 min | Every 30–60 min | Every 60 min at night | Every 30 min
Sunday daytime | Every 20–30 min | Every 30 min | Every 60 min | Every 30 min | Every 30 min
Sunday evening/night | Every 30 min | Every 30–60 min | Every 60 min | Every 60 min | Every 30 min

The issue provides transit frequency tables but does not mention files, tests, or an entry point. Start by locating where these frequencies are displayed and determine how users should select a travel time. Done should mean the displayed frequencies change appropriately for the selected time across the listed service periods and routes.

Written by the indexing model from the issue text.