TF1336: Visualizing a Richmond to Ladner RRT crossing

I did some more visualization to show the parts of each of the lines that would be needed at a 3.5% grade to reach a bridge height of 55m from 8m (essentially 1.5km on each side of the center of the span). I also calculated out the different distances of new track needed for each option and the "clear-span" widths. I realize that likely it won't be that it will span the whole river, but it does give an idea of the potential length differences between the options.

Options for a rail rapid transit crossing from Richmond to Ladner.

No. 3 Bridge Option

• Main Span: 450m @ 55m High
• Secondary Spans: 290m & 170m
• Lansdowne to Ladner Bus Loop via No. 3: 14.0km
• Length of Bridge Approaches in Marshy Areas (LAMA): 1.8km
• Other Above Grade Track in Marshy Areas (AGMA): 2.7km

Kirkland Bridge Option

• Main Span: 570m @ 55m High
• Secondary Spans: 200m & 170m
• Lansdowne to Ladner Bus Loop via No. 3: 14.6km
• Bridgeport to Ladner Bus Loop via No. 3: 16.1km
• Bridgeport to Ladner Bus Loop via CN Rail Right-of-Way: 16.8km
• Length of Bridge Approaches in Marshy Areas (LAMA): 1.8km
• Other Above Grade Track in Marshy Areas (AGMA): 2.7km

Coppersmith Bridge Option

• Main Span: 670m @ 55m High
• Secondary Spans: 220m
• Lansdowne to Ladner City Center via No.3 and Arthur: 13.7km
• Lansdowne to Ladner City Center via No.3 and Ferry Rd Tunnel: 13.3km
• LAMA & AGMA: 0km

George Massey Bridge Option

• Main Span: 570m @ 55m High
• Secondary Spans: 150m
• Lansdowne to Ladner Bus Loop via No.3: 13.7km
• LAMA & AGMA: 0km

No. 6 Bridge Option

• Main Span: 720m @ 55m High
• Secondary Spans: None
• Lansdowne to Ladner Bus Loop via No.3: 14.6km
• LAMA & AGMA: 0km
• Height of Riverport Station above Ground: 30m

Steveston Bridge Option

• Main Span: 1100m (but likely less) @ 55m High
• Secondary Spans: None
• Lansdowne to Ladner Bus Loop via No.3: 14.5km
• LAMA & AGMA: 0km (depends on water levels, what the real clear span would be)
• Height of Riverport Station above Ground: 40m

TF#1336. 2017-09-08.

Comments

cganuelas1995: Pedestrian volumes on a new George Massey Bridge?

Would there be enough pedestrian/cyclist usage to justify sidewalks and bike lanes?

waves:
Right now cyclists and pedestrians are prohibited from going through the tunnel so we don't actually have any sort of measure for how much traffic there would be. I was imagining a 160' (50m) cross section along the lines of:

2 x 10' Skytrain Lanes
3 x 12' Southbound Driving Lanes
2 x 12' Alternating Express Lanes
3 x 12' Northbound Driving Lanes
2 x 5' Bike Lanes
1 x 10' Pedestrian Pathway

TF#1339. 2017-09-12

Lane Arrangement for RRT on 8-Lane George Massey Bridge