Meadow Drive Aerial View (Plan)
Meadow Underpass
Palo Alto Grade Separation Planning Study
Movement Diagram
Intersection Turning
Alma St
Park BlvdPark Blvd
Emerson St
E
M
eadow
D
r
2nd St
100 ft500 ft
See note
See note
NOTE:
beacons, to be considered in future phases.
traffic signals and rectangular rapid flashing
Additional features at crosswalks, such as HAWK
PRELIMINARY
FOR DISCUSSION PURPOSES ONLY
LEGEND:
Track
Retaining Wall
Right-of-Way
Direction of Traffic
Structure
Roadway Modifications
Ped/Bike Ramps & Sidewalks
Planting Area
Profiles & Typical Section
Meadow Dr Underpass
Meadow Dr Underpass
Typical Section
Meadow Dr Profile
Ped/Bike Profile from Park Blvd to Emerson St
(North Side of Meadow Dr)
Park Blvd Profile
(Looking South)
Bridge Typical Section at Meadow Dr
Meadow Dr to NB Alma St
Ramp Profile
SB Alma St to Meadow Dr
Ramp Profile
a maximum span length of 60 ft)
(Based on a 2-span structure with
Top of Rail to Soffit = 6'-7"Note:
PRELIMINARY
FOR DISCUSSION PURPOSES ONLY
11'
EB Lane
8'11'
WB Lane
(Back of Exist Sidewalk)
Property Line
Shld
8'
Shld
20'
2-Way Ped/Bike Path
(Back of Exist Sidewalk)
Property Line
58' ±
Meadow Dr (East of Alma St)
Typical Section - Modification of Meadow/Roundabout Concept 12'
Ped/Bike Path
101+00 102+00 103+00 104+00 105+00 106+00 107+00 108+00 10 20
30 40
50 0
10 20
30 40
50 0
Ped/Bike Path from Park Blvd to Emerson St
Meadow Underpass Concept (Elizabeth Alexis)
200+00 201+00 202+00 203+00 204+00 205+00 206+00 207+00 10 20
30 40
50 60
10 20
30 40
50 60
North Side
Side Street Profile from Park Blvd to Meadow
Meadow Underpass Concept (Elizabeth Alexis)
20 30
40 50
60 400+00 401+00
20 30
40 50
60 13' 15' 12'-6"12'
54'-6"
MT1 MT2(Beyond)
OCS Pole
Abutment WallEdge of Abutment = Face of Retaining Wall
1' (Typ)
See Note
(Looking South)
Bridge Typical Section at Meadow Dr
301+00 302+00 303+00 304+00 305+00
10 20
30 40
50 0
10 20
30 40
50 0
Crest curve designed for 21mph. 195.8' required
Sag curve designed for 10 mph and based on passenger comfort. 36.6 required Side Street Profile to NB Alma from Meadow
Meadow Underpass Concept (Elizabeth Alexis)
check 64 no plot for 9% slope
Crest curve designed for 25 mph. 209.9' required
Sag curve designed for 15 mph and based on passenger comfort. 67.7 required 501+00 502+00 503+00 504+00 505+00
10 20
30 40
50 0
10 20
30 40
50 0
Side Street Profile from SB Alma to Meadow
Meadow Underpass Concept (Elizabeth Alexis)
check 64 no plot for 9% slope
Crest curve designed for 25 mph. 209.9' required
Sag curve designed for 15 mph and based on passenger comfort. 67.7 required Alma St
-0.5%
Total Length = 730 ft
St
Emerson
Original Ground
195' VC
296' VC
190' VC
16' - 6"
-12%
+10%
-1%
15' - 6"
16' - 6"
Blvd
Park
Profile Grade
Bridge
Ped/Bike Bridge
Ped/Bike
16'
MT2
MT1
RR Bridge
100' VC
50' VC
Original Ground
9' - 6"
10' - 0"
0%
-1%
-5%
+5%
St
Emerson
Profile Grade
Blvd
Park
St
Alma
Bridge
Ped/Bike
12' - 0"
Bridge
Ped/Bike
MT1
MT2
RR Bridge
50' VC
11' - 0"
50' VC
35' VC
Ground
Original
0%
+8%
-2%
Grade
Profile
Dr
Meadow
40' VC
200' VC
-2%
Dr
Meadow
-0.4%
Profile Grade
Ground
Original
+15%
+12%
70' VC
210' VC
-2%
Dr
Meadow
-0.4%
Profile Grade
Ground
Original