September/October 2017
Total Page:16
File Type:pdf, Size:1020Kb
St. Louis District Mobility September/October 2017 GuidePost Overall Freeway mobility has increased slightly for the am peak and decreased for the pm peak Average Incident / lane clearance Times slightly increased for both months Major and Moderate Work zone The Missouri Department of Transportation impacts continued on the announced the appointment of Tom Blair as Eastbound Poplar Street Bridge, the new district engineer for the St. Louis district. Blair has served as assistant and Westbound I-44 at Route 109 to Route 141 projects district engineer in MoDOT’s St. Louis district since 2006. Blair has played a crucial role in creating effective partnerships to manage incidents involving police activity traffic incidents, improve mobility, freight and and fatal crashes continue to safety initiatives throughout the St. Louis negatively impact the region’s metropolitan region. Congratulations Tom! mobility and are noted among the major incidents ER responses were hampered by civil disturbances Mobility Snapshot Freeway Mobility AM PM September to October Comparison: AM mobility increased slightly PM mobility decreased ZONING IN Major Incidents TMS Work Zones September 2017: 7 October 2017: 4 ♦ September 2017: 335 ♦ October 2017: 408 Average Incident Duration Sep Oct Lane Clearance: 25:14 26:41 Work Zone breakdown: Incident Clearance: 29:52 31:25 (Min: sec) ♦ Major: 22– 3.9% ♦ Moderate: 48 – 8.8% Major Impact Work Zones ♦ Minor: 481– 87.3% September 10 October 12 Work zone crashes: 7 Moderate Impact Work Zones September 23 October 25 Gateway Guide Transportation Management Center Work Zones TMC Observed Work Zones September - October 2017 September October Level of Travel Time Number of Work Level of Travel Number of Work Impact Zones Time Impact Zones Major Impact 10 Major Impact 12 Moderate Impact 23 Moderate Impact 25 Minor Impact 228 Minor Impact 253 Total 261 Total 290 *Impact Levels described in Data Key SL Mobility Rating: SL Visibility levels: ♦ Sep 2017: 92% ♦ Sep 2017: 93% ♦ Oct 2017: 91% ♦ Oct 2017: 92% ♦ Goal: 91% ♦ Goal: 91% Additional Travel Time Impacts through Work Zones Major Impact (15 Minutes or Above) Moderate Impact (10-14 Minutes) 9/1 – 10/31 (Daily) Eastbound I-64 – Poplar Street Bridge right lane (21 Major 46 Moderate) Closed leaving one lane of traffic open eastbound before Poplar Street Bridge daily All mitigation efforts were in use RITIS data recorded additional travel times up to 25 minutes during non-peak hours 10/20 (Friday) Westbound I-44 — Route 109 to Route 141 right lanes (1 Major 2 Moderate) Traffic reduced to one lane during overnight hours Hours were adjusted to 10:00 pm start time to mitigate impact RITIS data recorded additional travel times up to 35 minutes Work Zone Related Crashes with Mobility Impact ***None*** 2 Work Zones 3 Freeway Management 4 Freeway Management September/October 2017 Incidents Map Northbound US 67 at Westbound I-70 Stan Patterson Road Musial Veterans Memorial Bridge past Tucker Boulevard Eastbound I-44 before Madison Avenue Westbound I-70 past West Eastbound I-70 ramp Florissant Avenue to Stan Musial Veterans Memorial Bridge Eastbound I-44 at Hampton Avenue Eastbound I-44 before Six Flags Road Westbound I-44 before Eastbound I-64 at Poplar Street Bridge US 50 West (2) Westbound and Eastbound I-44 at Number of Incidents Shrewsbury Avenue 1 2 3 4 5 6+ Incidents Crashes Denotes Location of Major Impact Traffic Incidents Total Number of Incidents: August: 972 / September: 837 / October: 854 Major Impact Incidents September 2017 vs. October 2017 (7) (4) Fatal Incidents September 2017 vs. October 2017 (2) (4) Tractor Trailer Incidents September 2017 vs. October 2017 (43) (45) 5 Freeway Management Lane Blocking Incidents by Freeway September and October 2017 Interstate Month Number of Average Time to Clear Incident Average Time Freeway Miles Incidents per Mile Incidents from Lanes = T4 - T1 for Backup to Clear = T6 - T4 I-44 Sep 125 22:07 01:14 33 3.79 I-44 Oct 103 23:56 00:52 33 3.12 I-55 Sep 84 35:58 00:34 23 3.65 I-55 Oct 70 39:50 00:47 23 3.04 I-64 Sep 123 21:08 02:12 40 3.08 I-64 Oct 151 19:53 00:47 40 3.78 I-70 Sep 153 19:38 00:33 38 4.03 I-70 Oct 155 28:50 00:55 38 4.08 I-170 Sep 52 23:53 00:33 11 4.73 I-170 Oct 52 16:31 00:52 11 4.73 I-270 Sep 203 18:47 01:05 36 5.64 I-270 Oct 208 31:25 01:16 36 5.78 MO-364 Sep 15 19:57 00:00 11 1.36 MO-364 Oct 31 25:26 01:07 11 2.82 MO-370 Sep 24 24:15 00:00 13 1.85 MO-370 Oct 16 24:43 00:00 13 1.23 Total Sep/Oct 1565 24:46 00:48 410 3.82 *Note changes in Incident reporting data began in July 2015 6 Freeway Management 7 Freeway Management 2016 I-44 I-55 I-64 I-70 I-170 I-255 / I-270 Route 364 Route 370 Other* Total Jan 7 3 4 5 1 10 0 0 0 30 Feb 10 3 10 15 2 5 0 1 2 48 Mar 14 6 6 22 2 8 0 0 1 59 Apr 14 7 6 16 1 11 0 2 2 59 May 7 4 5 9 0 7 0 2 2 36 Jun 14 3 8 12 0 7 0 1 2 47 Jul 16 3 5 13 0 6 0 2 3 48 Aug 16 3 4 9 2 11 0 0 1 46 Sep 12 3 5 18 1 13 0 0 2 54 Oct 10 4 5 11 0 10 0 3 2 45 Nov 18 6 1 6 0 4 0 2 1 38 Dec 5 7 7 14 1 11 0 1 2 48 YR Totals 143 52 66 150 10 103 0 14 20 558 *Other Routes are MoDOT maintained non-freeway routes and were not included on system until July 2015 8 Freeway Management 2017 I-44 I-55 I-64 I-70 I-170 I-255 / I-270 Route 364 Route 370 Other Total * Jan 11 4 4 11 0 15 0 0 0 45 Feb 10 2 4 6 1 9 0 0 0 32 Mar 12 7 7 12 1 7 0 0 2 48 Apr 16 3 5 10 1 7 0 1 3 46 May 11 8 2 15 0 12 0 0 3 51 Jun 15 3 1 6 1 11 0 1 2 40 Jul 19 5 7 11 1 6 0 0 0 49 Aug 7 4 9 11 1 13 0 1 4 50 Sep 9 1 6 11 2 11 0 1 2 43 Oct 6 6 2 20 1 6 0 2 2 45 Nov 0 Dec 0 YR Totals 116 43 47 113 9 97 0 6 18 449 *Other Routes are MoDOT maintained non-freeway routes and were not included on system until July 2015 9 Freeway Management September/October 2017 Tractor Trailer Incidents Map Number of Tractor Trailer Incidents 1 2 3 4 5 6+ Incidents Crashes January 2017 – October 2017 Tractor Trailer Incidents Map Number of Tractor Trailer Incidents 1 2 3 4 5 6+ Incidents Crashes 10 Freeway Management Major Impact Traffic Incidents and Mitigation 09/01/2017 (Friday) Time: 5:42 pm - 7:52 pm ***Fatality*** Location: St. Louis City, Westbound I-70 past West Florissant Avenue Event Type: Single Vehicle Accident / Police Investigation Estimated Initial Impact: Rush Hour: 3 of 3 travel lanes affected equals (=) 100% Incident Details: A vehicle struck a street light pole at a high rate of speed during a police pursuit. The vehicle/occupants were being pursued as a suspected carjacking. All three occupants were transported in critical condition and one pronounced at the hospital. Action Taken: The TMC operators monitored the pursuit as it left downtown St. Louis. St. Louis City PD closed all lanes at West Florissant following the crash and St. Louis City FD and EMS responded. The TMC immediately activated appropriate message boards, and dispatched two MoDOT Emergency Response units to assist with traffic control. A MoDOT Signal Electrician was dispatched to secure the downed light pole. Notifications were made to the EOC, Motor Carriers, AE, and Communications. The signals along West Florissant near I-270 (Pershall, Eastbound, and Dunn) were set to remain in plan 30 to keep green time priority on northbound to westbound traffic travelling up on West Florissant to Westbound I-270. Traffic signals at Westbound I-70 at Grand and Broadway as well as I-70 at Adelaide were set to plan 77 to increase green times for the westbound exit ramps. Once the PM rush hour passed plan 94 was set to dedicate even more time to the exiting movements. The extended duration was due to the police investigation and accident reconstruction. Traffic queued 3 miles at its peak and took approximately 7 minutes to return to normal once all lanes were reopened. Result: The selected plans on West Florissant were observed to handle the perceived increase in traffic Northbound on W Florissant and effectively get diverted traffic to I-270 Westbound. Due to the volumes of exiting traffic the AMI plans were not completely able to clear queues each cycle, but did effectively move traffic off of the highway to select alternative routes around the closure. Event Duration: 2 hours 10 minutes Westbound I-70 Left Lane 1 Lane 2 Lane 3 Right past West Florissant Shoulder Shoulder Avenue Closed Hours/Minutes 2:10 2:10 2:10 2:10 2:10 11 Freeway Management Major Impact Traffic Incidents and Mitigation 12 Freeway Management Major Impact Traffic Incidents and Mitigation 09/04/2017 (Monday) Time: 12:51 pm – 3:43 pm Location: St.