The Limit - Trickiest Tunnel (Extension of the Jubilee Line)

The Limit - Trickiest Tunnel (Extension of the Jubilee Line)

Hugh Doherty has spent a lifetime building tunnels, from the Clyde River Tunnel to the Hong Kong Mass Transit System. But now he is facing his biggest challenge yet - to build a new tube line under the heart of London, in record time.
To speed up the job he is using a spray-on, rapid setting concrete lining, but as another tunnel using the same method collapses, the work grinds to a halt. When his two trusted tunnelling machines then break down, it seems his quest may be doomed.

Narrated by Robbie Coltrane.

First shown: 28 Nov 1995
Duration: 29 minutes

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Media info:-

General
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41)
File size : 497 MiB
Duration : 29mn 12s
Overall bit rate mode : Variable
Overall bit rate : 2 377 Kbps

Video
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Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 2 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 29mn 12s
Bit rate mode : Variable
Bit rate : 2 278 Kbps
Maximum bit rate : 3 500 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.099
Stream size : 476 MiB (96%)

Audio
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Codec ID : 40
Duration : 29mn 12s
Bit rate mode : Constant
Bit rate : 93.5 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Frame rate : 46.875 fps (1024 spf)
Compression mode : Lossy
Stream size : 19.5 MiB (4%)