UK Ultraspeed
Hypothetical journey times
Table:
Between
Present time
High Speed 2 timea [20]
Ultraspeed timeb [2]

London and Birmingham
84 minutes
49 minutes
30 minutes

London and Manchester
128 minutes
68 minutes
54 minutes

London and Liverpool
128 minutes
96 minutes
73 minutes

London and Leeds
132 minutes
82 minutes
74 minutes

London and Glasgow
248 minutes
218 minutes
160 minutes

Manchester and Liverpool
50 minutes
N/Ac
18 minutes

Manchester and Leeds
54 minutes[21]
N/Ac
19 minutes

Per the details in the table information on the 'Hypothetical journey times' part of 'UK Ultraspeed', summarise the highlighted cells in a single sentence and return it as JSON: {"answer": "YOUR ANSWER"}.