Site Survey Checklist: Four-Phase Verification from Environment Assessment to Delivery Acceptance
Field survey quality determines project rework rates. This article provides a checklist covering four phases: environment, power network, installation & debugging, and acceptance delivery.
1Why is rework so frequent after project launch? Where's the bottleneck?
Most rework stems from missing information during the site survey: failing to record obstructions and background lighting causes backlighting after installation; neglecting upstream bandwidth calculations leads to frame loss when pulling multiple streams; not confirming power supply methods results in discovering power access issues only during construction. A site survey isn't just a visit—it's about capturing all parameters needed for subsequent installation and debugging in one go.
2Solution: Four-Step Checklist
On-site environment phase: Record sensor orientation, obstructions, and background lighting; measure installable height and pole conditions; define the monitoring area boundaries and draw detection lines. Power and network phase: Verify PoE supply distance or identify nearby power sources; reserve at least 4 Mbps upstream bandwidth per single 1080P circuit; confirm network connectivity between devices and the platform, and validate firewall policies. Installation and commissioning phase: Mount devices at recommended heights and angles; after tightening, re-measure the tilt angle; verify on-site pixel resolution for license plates or human heads meets requirements; and observe continuously for more than 30 minutes to validate counting accuracy. Acceptance and delivery phase: Deliver site maps, equipment lists, and protocol access details; log commissioning parameters and alert thresholds; and agree to daily accuracy verification during the first week of operation.
3Data validation: measure by checklist completion rate and rework rate.
Convert the checklist into a selectable table. At the end of site surveys, completion must reach 100%; any missing items require a reason and a re-testing plan. During project retrospectives, track two metrics: the number of survey omissions and the count of rework incidents within 30 days after launch. Experience shows that reducing each omitted item significantly lowers the probability of rework—this is the value of shifting parameter collection to the survey phase.
Frequently Asked Questions
We recommend completing the full workflow. For standardized scenarios such as chain stores, templates can be finalized after the initial site survey; subsequent locations only require verification of deviations. However, power and network assessments must never be skipped.
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