20260810 Signal Plans Warren St.pdf
PDF 122 KB Posted
- Attached to
- IFB 123-26 Transit Signal Priority Project
- Solicitation number
- BD-27-1206-40000-40000-133492
- Issued by
- Massachusetts
About this file
This is a signal timing plan document for the intersection of Somerville Avenue and Warren Avenue in Massachusetts, related to IFB 123-26 Transit Signal Priority Project. The document contains detailed traffic signal timing parameters and phasing information for the Warren Street corridor, including cycle lengths, phase sequences, clearance intervals, and detector assignments. The plan specifies signal timing data for multiple phases with intervals measured in tenths of seconds, including minimum green times, pedestrian walk intervals, pedestrian clearance times, and yellow/red clearance periods. The document appears to be a technical specification sheet generated on August 12, 2026, providing the operational parameters necessary for implementing or optimizing traffic signal coordination at this location.
The signal plan includes specific timing intervals for vehicle and pedestrian movements, preemption settings, and coordination operation modes designed to manage traffic flow and enhance transit signal priority capabilities. The plan designates detector assignments for various phases and includes parameters for startup sequences, detection modes, and special sequencing options. This technical documentation serves as a supporting exhibit for the transit signal priority project, establishing the baseline signal timing requirements and phasing logic that would guide bidders in understanding the infrastructure modifications and signal retiming necessary for project implementation.
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Other files
| File | Type | Posted |
|---|---|---|
| IFB 123-26 Addendum 1.pdf | ||
| IFB 123-26 TSP Bid Document.docx | DOCX document | |
| 20260910 Signal Plans Union Sq Somerville 4.pdf | ||
| MBTA_Minimum_Insurance_Requirements~24.pdf | ||
| Special Provisions 02890 TRAFFIC SIGNALS 3.pdf | ||
| 20260911 Items List Signals Only Union Sq Somerville.xlsx | XLSX spreadsheet |
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Text version
Φ1 Φ2 1 2 3 6 SEC
10 1 1 2 3 20 TSEC
40 10 - - - NO
40 1 0 0 0 NO
40 1 0 0 0 0
30 40 0 0 0 0
20 10 0 0 0 FL
0 0 1 1 1
0 0 1 1 1
MAX NONE 1 1 1 1,2,3,4
0 0 0 0 0 5,6,7,8
0 7 0 0 0 0,0,0,0
0 11 0 0 0 0,0,0,0
0 0 255 255 255
0 0 0 0 0
NONE NA FRE
0 0 PRM
YEL INACT MX2 PLAN DATA
NONE NONE DWL
BEG
PLN
10 0
10 0
SELECT TRACK RETURN NOTES
GREEN 10
PED CLR 8 8 8
YEL/10 40 40 40
RED/10 20 20 20
SELECT TRACK RETURN
GREEN 10
PED CLR 8 8 8
YEL/10 40 40 40
RED/10 20 20 20
PREEMPT 2 INTERVAL TIMES
MIN GRN
MIN WLK
DWL GRN
OFFSET
FORCE
MAX DWELL
YIELD PERIOD
MIN GRN
MIN WLK
DWL GRN
PREEMPT 1 INTERVAL TIMES
COORDINATION
OPERATION
MODE
MAX
CORRECTION
QLIMIT
DETECTION
STARTUP TIME
RED REV/10
AUTO PED CLR
STOP T RESET
ALT SEQUENCE
SPECIAL SEQ
STATE
STARTUP
SEQUENCE
R1
R2
R3
R4
SIGNAL TIMING
Detector
Assigned phases
Switch phases
MODE
VOLUME
OCCUPY
LOCK
CALL
PASS
ADDED
QUEUE
EXT/10
DLY/10
FAIL
Somerville Ave @ Warren Ave
Phase
RED/10
YEL/10
MAX # 2
MAX # 1
PASS/10
DMAX
DSTP/10
VEH RCL
MIN GRN
VEH DLY
WALK1
PEDCLR1
WALK2
PEDCLR2
PED RCL
PED DLY
INITIAL
NA RESP
20260810 - Signal Plans - Warren St.xlsx Printed on 8/12/2026 Page 1 of 1
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